Thanks Andy. I really appreciate the input on your experience with the tires. Sounds like the Avons might be a good way to go. Yes, I think it is time to put some new shoes on the old girl. For safety, if no other reason.

I found a video on youtube showing the dynamic balancing while the tire is still on the car. https://www.youtube.com/watch?v=7Ugp-xWOnMQ

Still need to figure out the correct size spacers between hub and alloy rims.