[Myself]

Buy the good '95 engine, put your heads and all accessories on it, then hit the road. The motor has to come out anyway. Which makes everything easy to unbolt and bolt back on. I have done stuff like that a million times. I usually strip the good engine down, throw in a new oil pump and timing set if it needs it, and all new gaskets. Clean & inspect everything, bolt all your stuff back on. That makes for a nice clean motor with no leaks!