Hey Scott,
Hate to see you sell your mustang, but it sounds like you have good reasons. I would use Ebay as a last resort as I think you don't get good value for your car. It will sell, just not for what you want out of it.
I have had good luck using newspaper ads whenever I was buying or selling a vehicle. Also check out
www.traderonline.com for selling it. I found my current mustang there.
Good luck selling it and I hope you get what you want out of it!
Harry