I have a pristine 1988 toyota RV with a 1985 2-lt motor with 80k. It has just developed a cracked head. I have no garage so would have to work outside and don't have tools to remove crank, cam pulleys etc. I also have never prepped valve guides etc to go into bare head. I live in northeast pa and don't know anybody that works on these. The RV drives and is not overheating? yet, but I have significant blow by. I am here looking for any resources. I know that this isn't an ideal motor for this but the unit is like one of the best examples anywhere and I hate to see this be the end. Thanks