I found this
http://dallas.craigslist.org/ftw/cto/1483528028.html
and emailed the owner. I'm considering buying it, but I wanted to get some info on a few things first.
He said the floors are rusted through in some places. How did you replace yours? Oxy-Acetylene torch where it's rusted and then weld in new sheet metal? Anything I should know about the whole process? (**** that I can/will fawk up?)