Backing plate seal and stud tool question.

I'm restoring the stock Kelsey Hayes brake system on my '66 Valiant, I've found just about everything for it, except for the backing plate gaskets. Does anyone reproduce them? It's just a white foam gasket with a few holes, so, I can probably make them, but, I figured someone probably has made some new replacements. Can't seem to find them though. Also, I'm going to put new rotors on the hubs and find that the studs are swaged pretty tight against the hub. I'd like to get the proper cutter for that swage so I don't damage the hub. Who carries that tool? Thanks.