I dropped off the clutch at Dayton Clutch & Joint this morning. It appears the pressure plate can be rebuilt & re-surfaced and the flywheel can also be re-surfaced.
After MUCH detective work and a number of phone calls (including to Ram), I ordered another clutch disc--a RAM # 6130--to try with my existing pressure plate & flywheel. This one is a solid step up from the last disc, but it's a dedicated race clutch. It does have a sprung hub to help (at least a little bit) with street manners. Other than that, it's a balls-to-the-wall full boogie race unit.
I *may* have everything back tomorrow, and it shouldn't take too long to get everything back together in the car.
God knows I've got enough practice at it.