I feel like it takes most people on the internet a weekend, maybe two, to finish their trailer insulation.
It's taken me... 4 months or so? Granted, insulation is near and dear to my heart and I consciously and happily went overboard on it, but I'm glad to be done with it.
Before I was able to put in the second layer of insulation I had to run all the wires that needed to go through the ceiling. Mostly lights, bathroom fan, an AC line, and the main cabin fan.
Then I laid 1" polyiso in between the furring strips, cutting out holes for the recessed lights.
I found some 1/2" styrofoam insulation (no, I don't like stryofoam, but nothing else I found worked and I like freezing my ass off less) and stuffed it up in the forward compound curve area and top sides.
Next I screwed 3/32" paneling to the furring strips, again cutting out for the lights and fans.
It feels really good to have this work done, and it's starting to halfway look like a habitable box.
Next step: the pine floor.