And what sort of hoist would I need to swap out the engine?
Well wikipedia says 400 pounds, but I think it's a bit more than that. You can use any kinda engine hoist, I'd go with one that's rated for 1/2 ton for that job.
the complete engine weighs around 500lbs. and you can use a cherry picker or a tree with a come a long to lift out the engine. I've done many of those, their easy.
