In response to Q #2:

I just replaced both motor mounts a week and a half ago on a 760 turbo. The procedure should be similar for your 88 if not identical.

1. Before you jack up the engine, unscrew the top bolt on each motor mount. I also removed the bracket with each mount due to clearance. The bottom nut on right side mount by the turbo was completely unaccesible with the bracket attached to the crossarm. I took the left bracket off because of clearance. If the mounts are OEM the nuts are on rather tight. Have a piece of metal pipe to get extra leverage with your socket wrench or use the muscleman wrench trick with two wrenches.

2. I used a 2x4 between my hydraulic jack and the oil pan to protect it. Jack the engine up favoring one side. The engine should lift off of the mount. Lossen the three nuts on the bracket. Remove the mount and bracket together. Loosen the mount's bottom nut and remove the mount from the bracket. (This was the hardest part on both sides) It may be helpful to use a vice to hold the bracket while removing the nut.

3. Attach the new mount to the bracket using anti-seize compound on the bolts. (Anti-seize can be purchased in a tube at Pep Boys for about $3)

Install the bracket and bolt it in.

4. Let the engine down making sure it sits on the mount correctly.

DO NOT ATTACH THE TOP NUT YET!

5. Jack the engine up on the other side. (repeat #2-4)

6. Put the top nuts on both mounts. Make sure everything is tightly attached. Enjoy the smoothness of your ride.

I hope this helps. The procedure is pretty straight foward. Very little room for human error. Mainly a muscle job.