Thanks Numbchux! Excellent answer. Dad had a doner car for the electronics but it went to the salvage yard before I hatched this plot to save the engine. Sad really, but there it is. So, I will have to figure that out. You were absolutely right on the EG33 swap search. That is a gold mine. Sweet!
So, to put this eg33 in an Impreza for instance, we will likely need to mod the radiator and definitely need to figure out the wiring but tying into the exhaust, trans, and motor mounts should be pretty straight forward, perhaps with adapter plates and things we can buy? Would you recommend a rebuild on the trans?
Are there shops that you know of who specialize in this type of mod? Could be I will want someone to help with the wiring especially.
Much obliged! Appreciate you taking your time and sharing your knowledge with me to push me forward on this project to remember my Dad.