budget plan : 1974 barracuda 5.9 swap efi
You have a complete vehicle to swap from
The wiring might take some time but you should be able to do it with good documentation when disassemble of the Dakota
Most everything will be finding the place to mount computer. Depending on how the gas pedal is (drive by wire or still controlling throttle body) but that you should be able to do with Dakota parts.
Just don't get 1/2 way thru and give up. If you need help try and get it before the build starts and have 2 parts cars to sell
Have no clue on cost but it will almost ALWAYS be more than expected.
I would like to put a EFI HEMI in my Dart, just don't want to spend the money.