So I blew my rebuilt 7mgte cause a oil came off and ran it out of oil but anyways. I bought a 7m block that had a 5m head and he sad it was a rebuilt 7m but he didn't tell me it had a 5m crank as we'll. I look up a little about it and I gotta get custom stuff. The main question am trying to get at is it worth it getting all the items to make it a 2.8 7mgte or try and see if I can resurface my crank the one in the blown motor ?