I have now successfully installed my Indian brass handlebar clamp.
Both the original chrome clamp, and the new brass clamp, had the same problem with stud alignment. I removed the brass clamp, put some used nuts on the studs then carefully whacked them with a big hammer. This brought the studs a little more into alignment.
I then relieved the front of the brass part where the nuts were hitting, (just like they were on the chrome one). Following that, I took out some excess material from the inside radius of the brass clamp that was causing high spots.
Upon installation, I employed the method recommended by Kevin; start with loosely installing the nuts and washers on the studs, which allowed them to center themselves properly on the clamp, and pulled the clamp inward. I then installed the top bolts, used blue locktite on all threads, and tightened all nuts and bolts making sure that the handlebars were centered and adjusted to fit me.
It all went together very nicely in the end. By the time I got done it was getting dark so I could not get any good pictures of the finished job. Hopefully, I can get some tomorrow and add them to the thread.
I love my new brass clamp because it has traditional Indian scroll work with paisleys and the words "Royal Enfield" cast into it. I put Royal Maroon paint in the low areas to match my paint which I think looks pretty cool too.
Namaste, Ed.