You could always try Dealer's Den. I don't think eBay would be the best to sell the suit :x.

I've seen a lot of people start selling on dealers den - not yet replaced furbuy but possibly going in that direction
The other place is fursuitauctions.livejournal - A bit more commited group of buyers on there it seems. I've bought lots of fur and supplies there in the past.

Everyone always tells me dealers den but I haven't had luck there. When I posted my old pink fox fullsuit on eBay, it was bought out within a couple days!

It also might be difficult to sell due to the size of the suit. I kept trying to comment on the auction but it wouldn't let me. Might mention the link to my YouTube video of her, and say that the person wearing it is 5'7" and it fits, but the legs were a little short. Maybe thrown in that foxysox can alter it for a fee to fit better? Feel free to post any of my links so people could ask how much it would be to alter it to their specifications. Also! Turn the suit inside out, and measure all the important areas and put that in the auction. That way people can see more specifically what the suit may fit like:)

I will add that. Thank you so much for all the help. I very much appreciate it. ^,^