Sounds like a good idea!
I purchased mine used last month from a guy who used to own a demolition company. The floor has a few spots where there are oil stains from equipment, so I may take your advice and wash and paint the interior.
This is my first enclosed trailer, and I love it!
I used to have an open trailer, but found that someone decided to steal some equipment from it while it was parked in my carport one day.
I'm just a little guy in this business because I have a full-time job elswhere, which is why I only have a 6X12 compared to some of the larger, and nicer, ones that the rest of you on this site have.
"If God can grow it, then we can mow it"