1. DC wiring for lights, fantastic fan, possible solar panels, deep discharge batteries.
2. AC wiring for plugs, possible ac, tv, fridge, etc.
3. Insulate walls and ceiling with single layer of insulation (no furring strips).
4. Possible installation of subfloor, floor insulation.
5. Central power center for AC and DC protection and connections.
6. Plumbing for propane tank, fridge, hot water, and cooking center.
Any and all suggestions welcome, including things I have neglected to consider.

Thanks