Hey everyone! Thanks for all the answers and clarifications, they helped a lot. :)
Here's my entry for the expensive category:

items i used and their prices
Desert Raider Puffy Pants - 3,430,000 sP
Rainyday Desert Rose Top - 33,499,990 sP
Netted Abyssal Shell Top - 1,000 sP
Diamond Shard Jeweled Belt - 94,992 sP
Kore Bloom Garter - 1,500,000 sP
RoQ Candy Turvey Bleached Flats - 4,444,440 sP
Frilly Pink Lingerie Stockings - 4,500 sP
High Elf Crystal Brooch - 649,999 sP
Large Rose Quartz Cuff - 6,000 sP
Diamond Circlet - 6,750,00 sP (retired collection item, user shop price)
BrightEyes Gray Contacts - 4,500,111 sP (retired CS item, overall price)
Anechka Sheepish Lipgloss - 24,500,000 sP
Creme Eyeliner Pot – 14,831,666 sP (retired CS item, overall price)
Miniature Palace Playset - 6,000,000 sP
Natural Body Ink - 3,900,000 sP
Pink Body Glitter - 899 sP
Total: 104,113,597 sP
[edit] I changed the prices according to the new rules. With the Creme Eyeliner Pot, I went with its overall price although there's one in user shops, 50 mil seemed a bit too much.
Well, that was challenging. It also took a while, but it probably didn't help that I was doing 2 at the same time. :D I liked this one better but just for fun, here's the other one if anyone's interested. I hope everything's ok, if not, tell me and I'll change it. :)
"psst rich is so bad with making rules, pass it on" :K
RULES - Item Prices/Worth
if there's anything missing or doesn't make sense let me know
seems like rich changed it to 4m/100csc
put the above in first post?
you're still a human to me you didn't think far enough D<
Here is my entry for the cheapest HA. ❤

item list: Gray Drill Hat /20,4k/ Black Pocketed Scarf /0,5k/ Simple Black Leather Collar /70k/ Hooded Lashes /2k/ Black Draped Jacket /2k/ Bleached Patch Vest /87,1k/ Striped Leggings /0,8k/ Elegant Oriental Footwear /75k/ Whiteout /9ook/ SO EXPENSIVE! but needed! Black Striped Bodycon Skirt /2k/ Popstar Striped Top /2ook/ Dark Freckle Lotion /2,4k/
a few questions: are salon styles allowed, and if yes, is the cost of that style's ticket included in the price or are they just allowed (and would they cost 10k?)
For my cheap HA

Total Price: 200,033 sp (at the time I submitted the revised version of this ha, prices may have declined or raised since)
Expensive HA!

Items Used
= 26,000,000
= 49,990,000
= 6,000,000
= 648,000
= 391,111
= 3,300,000
= 98,998
= 2,830,000
= 49,000,000
= 425,000
= 9,900,000
= 3,500,000
Total = 152,083,109 sp (all prices are based on the time I submitted and may have gone up or down in the time since)

Okay so here is my new entry for the Expensive HA. I ended up using 5 CWs and I'm cutting it kinda close, but I think I just managed to get it above this time. :( I tried to use less but it just got so cluttery and this is nice and simple with a bit of fun layering. I'm pretty happy with it and the BOOBS! I totally am tempted to wear it for a bit but I still love me previous HA, however this is definitely going up on my stylefile!

Item List and Prices
Rose Body Blush - 310
Mean Green Mother Undershirt - 99,987
Innocently Wrapped Cross - CW - 7 mil
Pure White Stockings - 697
Bottled Peach Cherry Blossom of Remembrance - CW - 7 mil
Rose Shadow of a Goddess - CW - 7 mil
Rainyday Serenity Eyeshadow - 2,185,000
Book-Shaped Box - 7,900,000
High-Waisted Rose Sparkle Skirt - 4,549
Innocent Sovereign Belt - 14,899,998
Donna Pearl Necklace - 3,600,000
Rainyday Ethereal Lipstick - 1,350,000
Everlasting Snowlady Heels - CW - 7 mil
Natural New Wave Strands - CW - 7 mil
Pink Pearl Double-Strand Bracelet - 50,000
Pink Pearl Single-Strand Bracelet - 55,000
Professor New Krown Key Ring - 222,000
Silver Sheer Bow Headband - 112,998
Orange Sheer Bor Headband - 60
Pink Sheer Bow Headband - 1,000
Shinwa Cameo Brooch - 499,995
Verdi New Bloom Bustle - 599,000
Esteemed Ladys Mask - 13,000,000
Artist Pencil - 28,699
Total = 79,609,293
Yes they are! I'm totally kicking myself before for not slotting on snowladies earlier because I was all "whaaaat 600 CSC for shoes?" but then I realize they hold their worth pretty well and it's impossible to find good shoes on subby. So I only have like 6 pairs right now and it's not enough, even though I got the glass and vanishing ones so that I can kinda play around with a few of them and turn them into slightly different shades of the color, so it's a bit more of a variance, but still kicking myself. Especially because I love the orange ones, but I probably won't ever get my hands on those because I don't even know how many exist on site. D:
I def. feel you. I didn't even know those shoes existed until I saw them on the CW lending thread and I was like 600 CSC for shoes? pfft. And now I cry everyday when I think about how shoe less my HAs are. Were the orange ones a limited? I just love all those shoes so much ;-;
I'm not sure but I asked Noir and she said she only had like 2 or 3 batches of them or something idk, she didn't rerelease them during moros and she did release other shoes so idk. Her cousin Cake is helping her release a few more ones these upcoming weeks. This past weekend she released a nude color, but I think they're releasing a red and a green color (two separate colors) this upcoming weekend and the following weekend iridescent and maybe blue? I can't remember it's in her thread but yeah this pair is the only one I had up until literally two weeks ago LOL. I'm now grabbing them whenever I get a chance if it's a color I think I can use.
Yeah, I don't really use red or green colors too often, I'm usually more pinks, purples, whites and pastels with my HAs but if I can afford it I will be buying the green and red snowladies because in the worst case they are useful to trade for other snowlady colors. But I will force myself to make green and red HAs for them lol.
LOL that is really cute and according to overall price cheap, so lol I'm nabbing one. LOL. But also I realized I have and that would probably go fabulously with red shoes, since I figure it'll be more of a darker brick red color for the festive colors. And the green will probably be darkish one so yeah that sweater you mentioned will totally work.
I kinda wish Navy wasn't such an underused color in the CW world. I recently released a CW and the original color was supposed to be a gorgeous navy (because that's how it looked in the ref pic with like the instagram filter and whatnot), but it didn't get enough interest so I had to commish the pink recolor and release that instead. I mean I love pink, but I still have a thing for navy.