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?

I would add LUCK to that list, a lot of times things don't turn out the way you want when you are restoring these kind of cars.
I really try not to think about how much money I have spent so far (and i haven't finished yet), and when that crosses my mind I go and fire up the engine, that sound makes all go away... if it starts :P