Originally Posted by
plonz
^ I think OP is trying to keep the bike period correct.
Also agree that if you're going to ride it, put wider bars on and deal with the wave of scrutiny coming from the scores of vintage purists you encounter.
I constantly deal with the same issue with seatposts.
If you want to ride period correct, then ride period correct. If you don't, then don't.
Then of course, you can do both with 2 bikes or more. That is how I solved the "problem".