1964 Dart Grüne Hölle Road Course/Track Day/AutoX Project

Probably not much currently available. You will need to work with a local clutch builder / remanufacturer most likely.

You have Choices however.. I would see what is available in the T5 Input Splines and Ø for the disc, probably in 9" to 9.25" OD then Get a Pressure plate built to match it - Especially if you want to run a stock flywheel. There is also this option:
I have bought one but do not have it in my hands yet.
The one I bought is setup for the T5, not Mopar A833. It can be hand in either flavor.
- My buddy has it and I will be picking it up later in April.
In that case, I'll just use a Mustang disc and rock on with the pressure plate I have. It's pretty new still anyway. Thanks!