Another alternative would be to just clean, re-gasket, paint & detail the engine as a display. Sure, it's not a Hemi, but it's sentimental, and would still be pretty cool as a display.
I'm assuming it's just your Dad's engine you have, not the whole car. If I were to find my Dad's old Sport Fury, I'd want it how I remember it (stock), except maybe a more modern brake system.