This will be the last ground up car for me.

Key things that play a role into what we are discussing I believe rather than age.

1. Money (this makes the world turn)
2. Shop conditions (shop with lift or shade tree)
3. Tools (proper equipment or monkey wrench)
4. Time ( you got it or you don't)
5. Health ( you got it or you don't)

any others you would like to add?

Yes; if I had a garage with a lift it would be a Big help.
A dirt side street was no fun place, to swap an engine.