There are spec's on the thickness still available.
If the splines are not all slopped out in the center hub you can call around to find a brake and clutch relining facaility.
Last year NW4EVR had a 22 clutch done at a place in Milwauke WI, this year they did my 10 clutch.There is a place in Indiana that does them too. Plus I found out that there is a place in Rockford, IL that does this work also.
The way to find a place is to go into the old auto parts store and ask them if they know who can reline it. Not a chain store but that old almost out of business place in town or Napa. I use both places for goofy parts chasing and the old place usually can find it.
I used a place in Muskegon Michigan a few years ago, It came back looking new, they sandblasted and painted it along with riveting the new disc's on for I think $70. If I remember right the person NW4evr had re-line his used an adhesive intead of rivets? Is that what they used on yours Jeff?
NW had them glue on his linings.
They would have glued mine but a miscommunication and I ended up with new lings riveted.
Thanks for the help it should get me back in the field soon.