If you cut holes in the roof get a product called Snow Roof. It's a weather proof roofing compound that you can paint on with a brush. It's made for this type of application to RV's. I have used it on RV's in the past and works really well.
When I first read it I thought it said cantina instead of cantenna. I was thinkin what the...whole different vision. I tried a cantenna to boost my signal but it didn't seem to make a difference. Someday I guess I'll have to get my own internet.
Are you going to rent out the other half? Man, I wish I could afford a duplex.
Nice yard BTW with local mail delivery. If you sell your place you can always move to the Walmart RV park.
I like your ideas, at least you won't have to worry about heating or cooling, cuz it'll be hotter hell in the summer and colder than a bioch in the winter.
Is that a VG on the roof or just a wood block?