heyoo I imagine this is probably explained somewhere but i havent been able to find a clear answer,,

if you have an item that is listed as a cash shop item (like this sun hat i have for some reason, I know I didn't buy it, I think it was a free shop win or something) --> is there a way to sell it for CSC instead of sp? or can you only sell it for sp

if there isn't a way to sell for CSC, does anyone know what that hat is worth in sp? I'd much rather have the csc if possible though!!

You could stick it in trades and ask for CSC. It costs 125 in the cash shop, around 12.5m, give or take, in sP.