I ended up buying the OEM BDR mounts from
https://www.backdraftparts.com/produ...or-mounts.html
The BDR mounts are constructed of a upper and lower protruding stud welded to a large area steel plate (One each top and bottom). The plates are encased (molded) in the rubber mount.
I tried for hours surfing the Net and contacted a few forum members but I never could find a source or part number for the poly mounts.
I did find a few companies making encased stud styles for BMW and Honda cars and others but no dimensionally correct mounts.
I could have just installed a poly solid mount and ran a long bolt thru the center, however as the mount heated up and sagging with age the the bolt would be looser and looser. (Not what I'd call a good design).