I would think that it would be worth looking into. I like the idea of using a modern slip on. There are so many different types of slip on's available.
A 6-2 would probably be what most guys would be interested in.
The Bassani would be a good exhaust to try to duplicate for a 6-1. It was nice because it fit tight to the bike and was barely noticeable. It's muffler was similar in size to a lot of new slip on's.