1st Gen Crew Cab Engine

So, I'm in the beginning stages of building my 1st Gen Dodge Crew Cab Long Bed rig. I don't have a whole lot of money to play with (just had our first baby) and am trying to keep costs down as much as possible. It also won't be a daily driver, but will still be driven frequently. I had figured on dropping in a 1st Gen Cummins into it but am not 100% sure yet.

The power and mileage are huge benefits with the Cummins but the sound (I'm not looking for a loud truck) and the initial cost of the swap and big detractors.

Other options I thought about have been going with a 383 or 440 (possible adding fuel injection), a 1st gen era 360 (be the easiest swap), a later 360 or even a hemi.