First day home for longer than 8 hours in a few weeks, so I took the opportunity to get into the trailer and start ripping stuff out. I pulled all the thin wood stripping out and tried (and failed) to start taking the plywood off.
I failed to get the plywood off because they're fastened with whatever these are:
They don't screw out, so I guess I'll have use a nail puller on them.
Also I discovered that the studs have significant rust issues as well. I'll have to take all the plywood off and address it as well as the underbelly rust.
Well, shit.