Amen to that! I got my hands on a used lockright to replace the minispool in my front Dana 44.
Why not just go hydro-assist?
I'm thinking I can do mine for about $100.
You could use BrettM's setup and come in under $100 (for the parts). I know you'd need to spend some money to get everything welded...
Hydro assist may help with turning the front tires when they bind (which happens a LOT when the traction is good), but it won't help with the fact that even when I get the tires turned, the truck still wants to go straight in the sloppier stuff. I hate doing 3 or 5 point turns.
An automatic drop-in locker costs under $300 (used are even cheaper) and when you shift into 2wd, the locker lets go and you can turn no-problemo. Plus, don't forget that retaining the CAD means that you're retaining the little 260 U-joints (unless you go get 95 YJ shafts which would have 297s and the CAD). I personally would get a used locker and upgrade to 297/760 joints and shafts.