[Sans Peur]

I would think you could find a good 3208 and replace it. Much cheaper than replacing 2 engines. Refitting with a different engine is going to add a ton of extra things to redo (meaning $$$$$). Just off the top of my head you are going to have to redo the engine mounting locations. Possibly different transmissions or at least new couplers and housings. Change shaft length. New exhaust system (at least the first half). New controls and wiring.

There is a guy in Orlando, FL that specializes in rebuilding these engines and I am sure there are many others around the country as well. That engine was fairly popular for a long time and should still be obtainable.