Milwaukee Reconditioned M18 Cordless Impact Wrench with Friction Ring — 1/2in. Drive, 450 Ft.-Lbs. Torque, Tool Only $100 + $20 GC

Northern Tools has it for $100 with a $20 gc for future use. The keycode 266229 must be applied on the Shopping Cart page.
It’s not a fuel version but 450 lbs of torque should be enough for most people.
1 year warranty