Did you think about wristing one of the radius arms on the trail rig? It seems to work for the Bronco guys. There's a little about one of the Tough Trucks set ups in the 4 wheeler I got last night. I didn't look at it close but they say his axle tubes rotate somehow.
If I come across aother killer deal on a control arm, I'm thinking of making a wristed one to put on my 40 with 80 front suspension, just to see the difference.
If I get my lazy ass off the computer, I hope to be driving the 40 today.
edit: Didn't make it, but really close. Stinkin' relatives comin in are gonna keep me from wrenching again until Monday.