5.7L/ABS Donor Car for 1967+ Dart

Your easiest swap would be a 2003-2005 Ram with 4x2. You'd have the 5.7L with a 545RFE. From the tank you seem to want to keep automatic and this one is the easiest modern one to make work. The NAG1 does take some extra parts and setup.

All 5.7L car motors have MDS but it's quite easy to remove. The 6.1L don't have MDS...

I've seen anyone get the ABS system to work so you'll have your work cut out for you.

Riddler