I am not yet sure what to do about the walls (well they are half roofs as they are the attic walls), but I don't want panelling on them. Will have to find a solution.
With BTC, I hear about the PaypPal and Square conenctions etc, but I think that there is more to the pump than that, and less :) I think we are just gearing up and these kinds of dips are part of the ladder.