I think you may be a bit overly optimistic about your weight savings, but all in all it sounds like it will be a nice ride!
my concern would be supension tuning, you will be gaining a lot of weight over the nose of an already nose-heavy car. I guess my caution is, don't just throw parts at the suspension, do your homework analytically first, and then go look for shocks/struts and springs and bars that match what you figure out you need. It will save you a lot of money and wrench time in the long run.
Good luck, and if I can be of any assistance, let me know.
