Thanks.

It looks as if strap holders have rivets. Not too sure how to replace either, I don't have a rivet gun.
I wonder if I can peal back the felt/fur on the inside of the case, remove the rivets and replace with nut/bolt assembly, maybe with a bolt head resembling the rivet head???
There are no more luggage repair shops where I live in eastern Washington/northern Idaho anymore. I used to get all this vintage stuff fixed from a shop, but not anymore.