If you like it go for it, unless you want a long wait, I have the 18" wheels, but I don't think the 17's are going to be much different. The 18's cost about 800 more as well as the tires you will have to replace them with will cost you more. As far as the shaker, do you really need 1000 watts vs 500? I got the regular stock radio (150watts) which I can replace with a better radio at half the cost of the shaker.
Whatever you decide, good luck with it!
Whatever you decide, good luck with it!