Things are percolating now. Initially I had him rolling into it from the back. Now I see that is not as good as backing into it.
I could find a donor one of these, they break all the time I am sure something could be had.
Pride Jazzy 614 HD Heavy Duty/High Weight Capacity Power Wheelchair - Pride Heavy Duty/High Weight Capacity Power Wheelchairs
Mount better wheels at the drive motors, install them on my frame. Make my own front big casters. Re-use the power chair controller and battery system. Big wheels will give it some decent go.
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2007 Dodge Ram 3500 SRW 4x4 with 6MT
2003 TDI Beetle
2002 TDI Beetle
currently parked - 1996 Dodge 2500 Cummins Turbodiesel
Custom cab, auto, 3.55 gears