I am Sooooo Confused over Paint

So back to the op, charliec, did you get anything useful out of these posts and make a decision about what to do?
You bet, I did. I know that I have a lot more hours to put into primer/filler/blocking!!! Then, since I'm not looking for show-quality, I will probably go single stage. Looking for the right color also. The car was yellow with black vinyl top when I bought it, and that really appealed to me. I am trying to identify the correct yellow. I think Plymouth called it "sunfire". It's not a knock-your-socks-off bright yellow. It's a little muted, but not pale.

I appreciate all the advice. Very helpful.