That's cool! My goal is to buy and build a cozy home in ~4 years. It might be less than than, but, there's a lot of of my control. 

I am not sure I would use PV panels as roofing, at least the typical roofing. Having that many seams to seal with a non-overlapping system doesn't seem at all practical to me, but I'd be very curious to see what conclusion you come to since it is a fascinating concept.