Just got a 65 Dodge Dart, my first mopar!
What a deal for a rust-free SoCal car. The alum radiator is worth $150. I would keep the slant (my 64), but a V-8 swap is easiest in an early-A. Some say most 66 slants have the V-8 steering links (1/2"more drop), so grab if you find. Also would need a 65 cable-shift SB tranny. Work on brakes first and a dual MC is safer (many posts).