Talked to Marti at Pompanette this morning, the parts I think I need are available, except for one, and I can reuse mine.
We got the jib down and stowed, and the jib halyard will become a temporary stay. Tomorrow we are pulling into a Marina to wait out a blow, and I will rig that stay, ease the back stay, and remove the forestay at the stem. The drive assembly will slide off the bottom, and I can take it on shore and evaluate the "rebuild". That way, I'm more certain of only placing one order.
If we want to try the repair, the parts I've identified so far would run about $150. May be worth taking a flier. On the other hand, as Jackdaw said, this is an opportunity for an upgrade, and Pompanette's upgrade pricing make that pretty easy, relatively speaking.
I'll know a lot more tomorrow.