Well Captain Zippy, welcome to the Forum.
You actually sound like you got a good deal. My SKYJACKER Platinum cost me $1100 for kit, installation and balancing. Rusty's is a good lift from what I hear, but I would personally trust the SKYJACKER because it is a large brand name company with lots of support if things go crazy! It includes the front coils and the rear coils as well as many options for the front and rear shocks (ditch the factory ones!)
Also, it says that you can run a 31" tire, but I am running a 32" with just a little trimming to get rid of the rubbing! I would reccommend talking with your 4x4 specialist to see what he can do for you as far as tires because it is possible to get the tires cheaper elsewhere, but you gotta give your locals some business (plus they are very knowledgable on everything 4x4!)
KJLIBERATOR