Back inside

At this point, we still thought we could repair the floor in pieces like they do in a vintage Shasta travel trailer.  Removing the rotten front panel and a little prying showed that just wasn't going to happen.

The cardboard floor extended throughout the trailer, so could only be replaced as a whole frame up rebuild.  Of course, there was no instructions online for how to rebuild a floor that was only 1.5" thick...

I do like the way the light filters through the removed open ceiling panel here though...at the time of purchase, we thought we would only have to replace this one bit of plywood near the vent and be on the road.  ha ha.