Very interesting. I like the design of the solar panels toward the back and lowered vs the way you were looking at before which were higher up the roof. I don't know if would cut down dramatically on your living space, but it looks like it would a lot easier to construct.
The scullying system looks like it would make for a great 2nd propulsion/back up system in case anything ever went wrong with your solar.
everyday I think of something different...