Nice job, nice bike- and an overall encouragement to us C&V'ers about the capability of "vintage" gear.
I'm no racer, but I had the springtime bug of shopping for a new-tech bike. Then I re-read a couple of my 70's era books on bicycling, and was reminded of both the training regimen and speeds achieved by racers back then. They went further and faster on 20+ pound steel bikes with downtube shifters than I could hope to now on any bike!