For $500 you can find another engine from the junk yards, I bought a core engine in 04 for $125. It had a engine fire and other than the outside componites burnt off, it was perfect inside. Too many in the yards to go dicking with a re-build. If you find one use an air tank and leak down tester, don't need to be spun over. Or take a hot battery to crank it over with comp checker.