Nice save! Welcome to the QL family
Duke told me how to check the ISO mounts, but I had bliders on when I was buying mine, so I never saw anything till I got it home. I noticed one being bad after I raised the front up to clean the bottom, the rubber motor mounts will be pancaked, or gooshy from the years of oil and wear.
(if that makes sence, congrats, cause you'll be the only one)