I did a google shopping search and ended up paying $41 shipped from partsgeek.com. It was at my house in two days. I'm on my phone so I don't have a part number.
I need to replace the mount on my '01 XJ AW4 as well... so any details you can provide as to part#, etc... is greatly appreciated by me.
I just did a quick search on Autozone and the part they call for my mount is $102.99... that's hard to believe unless it's some sort of liquid filled damper like you see on engine mounts for Mercedes and BMW type cars...