I finally have some pictures of my ordeal.
The first picture shows the 94 frame under side looking up on the engine mounts. The passenger side has an access hole underneath to get to the nut that holds the plate the isolator mounts to on that side. The difference on the 90 frame is it is solid underneath and there is a small area that would be even hard to get a wrench on.
This picture shows (not well, sorry) the top of the passenger mount on the 90 frame. There is no hole for the plate to go through for the 94 plate and isolator. I know I could just drill a hole and mount it, but I have por15'd my frame and do not want to drill into it if I can help it.
Here is the 94 isolator (left) and the 90 isolator (right) side by side. You can see the plate the 94 sits on where the 90 just bolts directly to the frame.
This is with the driver side bolted in and the transmission mount lined up on the skid plate and ready to be bolted in with the 94 bracket on the block.
and a shot from the front right tire.
Now I am definitely in search of a bracket since I managed to break an ear off the passenger side while wrestling it into place. So if anyone has one they would sell I would gladly take it off your hands.