Your Tip, being an automatic, does not have a clutch, but it does have a torque converter. I don't know if you need to do anything on the tranny, but I know if I had the tranny out I'd change the lube.
If you do a search, you'll find that those with automatics usually cost more to do the IMS and RMS, and some shops find it easier to drop the engine and tranny together, rather than just the tranny, and then split them to get at the RMS and IMS.
You might want to consider getting some other things done at that point, when access to the engine is much easier, like the AOS and water pump.
http://986forum.com/forums/showthread.php?t=28496&highlight=tip