1982 Oldsmobile Cutlass

Hi, We are attempting to do a father son project. I recently purchased a 1982 olds cutlass for my son. Everything is great on it as it was a senior owned vehicle and has only 50,000 miles on it. But due to sitting the motor seized. I have a 1994 chevy 305c.I. E.F.I. Engine and tranny from my old p.U. That I was hoping to put in the car but after looking at the truck it has some computer items that the car does not. Speedometer, fuel pump, etc. How can we make this work.
Thanks Joe