I am south of you, quite a bit. I am right by Puyallup/Enumclaw. Well i just got a hold of the person that was gonna sell me the siding, but i don't think it will work, because his pieces are 7'3'', but my camper is 8' long. What exactly is the foam board? Just insulation?
I dont really need any windows, as i am taking the side windows off this canopy
If i was to go with a jack idea in the future, i would buy some of those tripod jacks, as those would clear my finders. But with my project, i will only use it a few times a year or such, so it would be ok, to just go with the cable idea for now.
Yeah rigid foam insulation. It comes in different compression ratings (ie how much pressure it can take before it gives way) which can provide some backing to your aluminum siding. Will it be enough for your liking? I don't know but that is where some testing helps.
No worries on the windows I just know I'll have some extras that will likely be free to local pick up and I didn't know if you were thinking about any others.
I wasn't so much worried about the type of jack you'd use as much as making sure you have some attachment points built into your frame for easy inclusion later.