How hard to replace motor mount-92GP 3.4L

How hard is it to replace a broken motor mount in a 1992, 3.4L Richard Petty model. Dealer says oil has dripped on motor mount causing it to decay. Oil leak is from around distributer seal. Engine has 130k miles. I bought the car new. Dealer wants $500 to replace mount and considerably more to fix oil leak.

I am able to do repairs on my other vehicles but this one is almost impossible to work on because there is absolutely ZERO room under the hood to get to anything. Where can I find directions to replace the motor mounts?

Any help appreciated.
Thanks.
y2kdon