1991 Dakota 318 TBI Belt Tensioner made of Unobtainium

My winter rig is a 1991 Dakota 4WD with the 318 TBI that I have been making plans to replace with a '98 5.9 Magnum. Right now the biggest issue standing in the way of the swap is the garage I have spent all summer trying to build. Now it is too late to do the swap as I need the truck, so that will have to be a next summer project (provided I'm not still trying to build the garage).

In the mean time, the serpentine belt tensioner froze and the truck ate the belt. Not a problem IF I could find a new tensioner. Seems the '91's are a special one year only item and I can't find a new one any were.

So, I am wondering if anyone has successfully swapped the '92+ tensioner onto a TBI motor? I know the air pump would have to go away (darn :)), and the belt length will have to be figured out ('92+ have the idler in a different location), but sure like to see if anyone else has gone down this road.

Note that I posted this over on Dakota-Durango.com but the traffic there seems pretty small so I thought I would give FABO a shot too.

Thanks