I feel your pain..you are not alone! I too had this utter nightmare many years ago, and it still lives with me (shudder)..
I had bought remanufactured mounts, but after two days of trying, put my original mounts back on.
The rubber on the remanufactured ones were way, way too hard..hardly any movement and they were slightly oversize.
I ended up throwing or giving them away (can't remember, but good riddance), the original mounts were fine..it turned out that it was the gearbox mount (in my case) that was past it's best.
Best of luck.
