Too bad you can't use it as is. Like Mike just said, Decisions. Someone will likley pay you more than you paid. I'd post the pics as is on your local craigslist for $500 or so for a couple days at least.
I'll tell you from experience, buying a cheap trailer to fix or reconfigure uses a lot of the available time you have that would have been spent towards building. If I had to do it over, I'd start from a new trailer and get what I wanted upfront.
Either way, you will have fun.
Mark