Thanks! I'll let you know how that pair of lower mount inserts works out. I know the OEM rubber guys are well past worn, the engine play gives me an angina attack. It's like watching the alien trying to come out of Kane's chest.
I might try the 3M 5200 marine caulking to shore up the upper mounts. I don't know how much effect that will have on the system, besides transferring strong vibrations to the frame. I might want to just leave those alone before my car rattles apart.