I rebuilt the floor in a Lance 1121 couple of years back and sold it as fast as I could
I got it for short money and made a small profit off of it
It wasn't to big of a deal you just have to remember how it came apart to put it back together, I didn't take any pictures and as I was finishing up the demo My mom died so work stoped for some time a month or so. I also couldn't find the source of the leak
2005 Ford F350 SRW 4x4
2000 Lance 1010