All your stuff sounds good except the wheel.
I'd stick to a road wheel with a 130mm spread. That means you only need to cold set the frame 2 mm per side. Or if it's not much of a squeeze just spring it it each time as suggested.
While touring bikes these days use the 135mm MTB standard there's no big reason for it. Your Touriste did fine in its day on the 126 mm setup after all. So it'll do fine now with the 130 mm setup.
Get a Shimano road wheel with 32 or 36 spokes and then put on an 8 speed MTB cassette and use an MTB derrailleur. Up front if this is for more casual riding I'd go with an MTB 44 tooth big ring crank set. Or if you think you'll spin that out too easily even on the 11 on the back then go with a 46 or 48 big ring cyclocross crankset.
The happy middle ground for shifters would be indexed 8 speed bar end shifters if you're running drop bars. That would get you up off the downtube and up onto the bars which would be a pleasent upgrade.