Eternabond tape applied and out of the shop!!!!
Lots of little finishing details to be done, but it is sealed up and I am at least able to work on it at home now.
40 days from start to finish and significantly more hours than I expected. Probably 80 man hours in it total. Total cost is just under $1000 ($545 of that was the filon siding). Steel, plywood, stainless screws & glue.
Still to do:
Clean up & paint the corner trim
Clean& paint interior (all wood now)
Install side windows & roof vent (in the spring)
Make it "pretty" (paint, graphics??)
Overall I am very pleased with how it turned out. I had no clue what I was getting in to, but I have decent mechanical and construction skills. It is much heavier duty than original and the trip home didn't have all of the squeaks that it had before the rebuild.
I hope this helps someone in the future who decides to tear into it themselves.