2001 GT Wagon 5MT, 250K
75% of the vibration was resolved with a new transmission mount. Motor mounts are next but it looks challenging.
Raise the motor and fish out the hidden back bolts. A vid shows removing the headers for the working room, but detaching the exhaust at the junction seems access limited too. Removing the oil pan has access issues for the back screws...
Please share you experience on how you got it done!