[olddog]

I have a lot of back issues, so I'm concerned with your plan. Ergonomics is a big issue for everyone. If your young and in great shape things don't bother you, too much, but now I wonder how much of my back issues are do to all those things that didn't bother me back then. Most likely all of it.

You should consider the toll it will take on your back being bent over and lifting heavy parts with your arms stretched out. Forget the engine, who cares if it dies. It only takes money to replace it. Think about your health. No amount of money can fix back issues.