I've never thought about selling my cosplay. I probably could though. I have a few retired ones. the rukia soul reeper one was a pain because I bought EVERYTHING seperate.
I got the pants from my dojo, the shirt from a cosplay seller online, the shoes at a swap meet, the socks at a japanese store online, the sword from a cosplay sword shop and then I did my hair. XD
I wore it Kcon'08 in the line mostly.
The school girl one I just bought online. It's a little stained around the inside collar (you cna't see when wearing it) from when I dyed my hair and wore it right after but that's it.