Is it a chrome over brass hoop or chrome over steel? If the drum is for collecting purposes, and you wish to retain originality find an original replacement.

For playing, I'd recommend just getting a modern 14" steel triple flanged hoop. I've experienced a Ludwig COB rim splitting and wouldn't risk that again.

Will rims from a acro work?

that may be the problem I am having Stallwart!

Drum Factory Direct carries repalcment COB hoops. Although they are 2.3mm, and the originals on your drum are probably closer to 1.6mm.

http://www.drumfactorydirect.com/index.php?main_page=index&cPath=6_7_651

I think I'd play it with the dent. Your the only one that's gonna know unless you point it out to someone.

Yes, as will any other 14" 8 hole hoop.

I use a 25 pound Olympic weight plate as a dolly and a compathane hammer. Most rims a repairable.

If you're wanting to replace it to "restore" the drum to a better condition, I'd get an original, but can probably be hammered out, as has been suggested. Hoops in ebay are crazy expensive , IMO.......marko