Wow, beautiful build! Fabulous attention to detail.
I'm amazed that those wheels and tires fit in between those tight chainstays. I run 700x25's on what I think is an '84 Atlantis, I suspect I can fit 700x30's in there, but I think even that would be pushing it. Those Suntour Powershifters have such a nice feel to them, I think I've been spoiled; other friction shifters just don't compare. Not the prettiest to look at, but they feel so right.
Good luck over there!