I always wanted a school bus with a cherry-picker so I could sit in the top of an apple tree and read books.
I have a design for a housing factory on a flatbed truck that has two hydrualic lifts at the front of the bed. On one side, for a unit of plywood; and on the other a unit of 2x4. With a Maslow CNC router for the plywood and a compound miter saw bench for the 2x4, house parts would come flying off the back.