Looking for CJ7 D30 (at least housing and tubes)

So my friend John is almost done building his '79 CJ7. He got his Detroit locker and ring gear all set up and bolted in and found out his driver's side tube is bent slightly, enough to cause a problem even getting the shaft to spline in, much less rotate on center.

So he's looking for a replacement. It's a passenger-side drop, of course. Does anyone have any leads on where he could pick one up? He's already got the case/locker, R&P, shafts, hubs, etc.