Some work on Friday and Saturday before my back decided it didn't like me ...
The Peugeot Optimum had a new Sunrace bottom bracket plus a used Shimano 105 crank. I dismantled and cleaned both the chainrings I'd removed from the stuck Peugeot cranks plus the 105 crankset which had come off my now-gone Olagnero, then chose the 105 ones as the 52-42 looked better than the pre-existing 53-42 chainrings.
All done, with some adjustment to the front derailleur needed:
Due to space limitations I'll stick it on
eBay and see what happens, although the market for old 531-framed road bikes isn't great at the moment ...
Also, the new mech hanger for the Viner Mitus I'm building as a winter 2023/24 bike arrived, so that went on along with derailleurs plus an Ultegra crankset. Saddle and bars adjusted to more my fit, although the saddle probably will be swapped for a Bontrager Paradigm instead. Shifters are still to do however I'd like to find something better than the 105 5800 pair I have; preferably Ultegra if I can source a reasonably-priced set.
I
know it's not most people's idea of a 'winter bike', but I'm a dinosaur who prefers rim brakes. Or rather, someone who has a new rim-brake wheelset waiting to be used.