Here's a picture of the motor mount that I took out of my car next to the new one from our host (which has a 987... part number).
1) You can see how the mount from the car is cracked almost the whole way around
2) You can also see how Porsche redesigned the insert with a different arrangement for the hub and the rubber portion.
3) When replacing the inserts, note that there is a specific alignment when putting it into the carrier. I used a couple of bolts dropped through the holes of both units to make sure that they were aligned the same way. Then I used a sharpie to mark the outside of the new insert with a mark which needs to be aligned with a corresponding mark that I placed on the carrier. If you put it in wrong, you'll have a bunch of work removing the insert and then figuring out the right way to align it without the alignment of the old insert for reference.
Actually -- looking at the picture just now I can see that there is a notch in the carrier that aligns with the closest side of insert. No need for a sharpie!
4) I was able to remove the mount and cradle fairly easily from my car without draining the coolent. It looks like the hoses underneath it are fairly new since they were still supple.
5) Removing the studs helps since it will give you an extra degree of freedom in getting out from the car. The studs have a clever design with a hex head on them. You can just use a 7 mm socket to remove any which don't come out on their own, or to reinstall them.