morerpmfred: Fantastic lead!
So, just in case anyone cares - I put the front driveshaft back on tonight. It does vibrate a little, but not ridiculous like the CV used to. The rear is still my primary issue, but if this guy has them I'll hit him up for sure for them.
Thanks guys. Far more responses here than in the national Jeep forums. Hope to meet some of you soon, as my build is almost complete. (To start, anyway)