Mild update and some frustrations. Wound up buying a modern Sturmey chain tensioner, which turned out to have the same issue as the Shimano Alfines. I wrote about it here:
https://www.bikeforums.net/classic-v...l#post21431537
But at least I've got another tensioner on order, and the headset spacers arrived. I also forgot that the Velo-Orange Cigne is made for 31.8 bars, so I ordered some spacers for it too.
Incidentally, the Eastwood Ceramic Chassis Black that this thing is painted with is living up to some of it's reviews - it chips like Doritos. There's a small mark in the main tube from one of the featherweight headset spacers falling out of my hands. Ridiculous. A joke of a 2K paint, and I'll probably have it stripped down once done and have it sprayed again with something more durable.
-Kurt