Thanks to all the great advice I received in this thread:

http://www.bikeforums.net/showthread.php?t=469984

I went ahead and started the process of returning my mid-70s Tom Ritchey to it's original condition. After a couple of ebay purchases I found a complete Record group on CL only 20 minutes from home. Here is the result:



Since I didn't need all the parts in the group I ended up selling most already. Just have brake calipers plus all the 105 stuff I took off left to sell. The whole deal should end up setting me back about $300 which I'm happy with considering I have my 30 year old bike back the way it was. I'll not be letting this one go, hope my son keeps it around a long time too.