A note on the engine choice. The 3.6 is proven reliable. CDJR doesn't make an non turbo 4 cylinder anymore. Even the lowly Jeep Compass has a turbo 4 standard. I don't think a turbo is the way to go here. Also the Jeep Wrangler came with the 3.6, the 2.0 turbo 4, and a 3.9 turbo diesel. The 3.6 was lighter than the 2.0 by 29 pounds and lighter than the diesel by 800 pounds. The 2.0 cost $2000 more and the diesel cost $6000 more.
I saw somewhere, but can't find it now, that the generator was 130kW but up to 175kW. So that's 235 hp. The 3.6 is also used in the Pacifica PHEV where it runs the Atkinson cycle and makes 260hp. Seems just right for losses and running the Atkinson cycle. I did price a new loaded 3.6 engine, throttle body to oil pan, across the parts counter and its $7200 retail. I bet that means it's under $5000 if not even a 3 or 4 thousand dollar motor at cost.
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