The best way to remove the bushings is to find a shop that can press them out for you for a small price. Otherwise you are going to spend a good part of the morning beating them out with a hammer. I tried to do this once before on a camaro front end, gave up after an hour of sweating my butt off and getting nothing done. Took it to a suspension shop and the guy knocked them out for 30 bucks and put my new ones in. He had the tools I obviously don't.
You should also change your motor mount and tranny mount for a little insurance. I did both mine in about 2 hours, and that was with a few beer breaks and some choice words when jacking up the motor. Make sure you take off the upper torque mounts first before you start jacking up the motor otherwise you wont have enough room to sneak the lower motor mount off. Just food for thought....