Well thats what I dun did. never welded before in my 41 years. so after i bought the car my first major tool was the welder. My son took welding in school so he learned me. i did learn that cheaper is not better. get a wire welder that uses the gas sheilding. it is a pain to fix all the blow throus.
i was thinking the same for my motor. just pull it out of the truck, clean paint and drop it in then rebuild when needed.