Tip: you can get a decent cable cutter on eBay for about $20.
Beautiful UO-8, and perfect set of upgrades. Those new shift levers are a big improvement over the basic plastic OEM junk, and they look fabulous on that bike. (My 1970 UO-8, which I built new from a bare frame when I worked at a Peugeot/Nishiki dealership, has SunTour derailleurs, Weinmann brake levers, aluminum rims (braking safety as well as weight/performance issue), and SunTour barcons.
The only other changes I personally would make to yours include the addition of toeclips, perhaps substituting road quill pedals for the OEM units you have.
I would also immediately turn your front brake pad holders around 180 degrees, before the rubber pads work their way out of the now-open fronts of the holders. Better still, replace the pads with salmon-colored KoolStops for improved brake performance, particularly if your pads are getting old.