I vote non-Hellcat TR6060 or a Magnum. Hellcat TR6060 got a garbage 2.26 first gear. You'll probably find that by the time you go through a used TR6060, replacing the wear items, and converting it to a Magnum rear case you're close to the price of just buying a Magnum in the first place.

1975 Jeep Cherokee compound turbo 5.7 Hemi/6 speed AutoX/Drag/Street.
9.97 @ 140 slicks, 10.74 in autox trim