Toyota Repair: 1993 corolla rear motor mount, center bolt, toyota corolla

Question
My wifes 93 toyota corolla 1.8lt automatic 214,000 miles has bad vibrations idling in park and when changing into R or D. it does not skip or hesitate when driving, it drives great. local toyota dealer said the front and rear motor mounts are bad, but they recomend start with the transmision mount first. so i started with replacing the transmision mount, that did not help. i have changed out the front (at radiator)( it had some tears in the rubber ), but having trouble removing the rear motor mount.(underside closest to the firewall ) i can jack up on the notor slightly and have removed the center bolt going through the mount, then removed the bottom 3 nuts from under the mount, but do not understand how to get the old mount out from there. it will lift up just a little, but the bottom plate on the mount is hitting the motor bracket that is mounted to the side of the motor that the center bolt of this mount go's through and will not let it come out. i do not see how i would be able to get to the bolts that are holding on the bracket on the side of the motor to remove that to get it out of the way for the motor mount to get out. it is very hard to get to this mount as it is, is there some kind of little trick to get this out and the new one in that i'm not getting? can you please advise me on how to do this or is this one of the jobs that a dealer should do? i have the front of the car up on ramps to be able to get under the front area, i do not have a garage, no concrete, no hoist or alot of tools but i get by with little repair jobs. thank you  

Answer
The most common problem is the motor mount at the front of the engine which is attached to the right inner fender, has this one been replaced?  If not,I suggest, reconnecting the rear mount and then replace the front mount(on front of the engine, not on the front of the car)that rear mount is very hard to replace and requires dropping the font subframe down, if it does need to be replaced I would have the dealer do this.