Can anyone tell me how the Hustler and stickers work..? Like I know that if you buy the boxes for sP you could make or loose sP and/or not get a good item. But how does he work with stickers.. He charges 10,000 sP and do they always get stuck all of them or does he rip you off sometimes too? Anyone have any experience, help?

He charges you 10k sP to stick yourself with a sticker, he won't rip you off. if you're lucky, he'll give you an exclusive sticker when you stick a sticker to yourself too.

Is it only with one sticker at a time for 10,000sP or will he do all the ones in your inventory for that?

one sticker at a time for 10k each. but remember, you can have a friend stick a sticker to you for free.