Hello all, if anyone is looking for OEM engine mounts for the XJ12 I found them here https://parts.jaguarlandroverclassic.com/, was able to secure 2 (front) for less then £500 each.

 

Looks like those are the hydraulic type as used up to 777506. Which is most of the production run. Too bad that the later version is not available. The later version is the rubber type and would probably cost a lot less if they had made enough of them. I think Oliver has those on his car already.