I also had a heck of a time with 1 of the top cap screws/allen wrench time.
I also had to loosen the front motor shock, this gave me enough clearance
height using a bottle jack and 4x4 on the oil pan to insert the new mounts. Old ones were compressed quite allot. I also took off the radiator top hose
so I didn't break the plastic neck when I jacked the motor up.
I would say it took me a good 3 hours on my back using car ramps.