I don't think its going to accomplish what you want. Your making the springs stiff, yet its still going to have soft struts. This will make it somewhat bouncy over bumps. If you had the stiffer R/T struts, might be ok, but I don't think you'll like it. The R/T is quite a bit tighter as far as handling goes. Stiffer struts and springs, and bigger sway bars. I would go and drive an R/T,and see how you like that....... you'd be better putting your money towards a trade, than maybe spending 12 or 13 hundred bucks on a swap, your probably not going to like. IMO there is a huge difference between how an R/T drives, and how an SXT with 17 rims does. I have seen this many times over the years at the dealer, someone finds out what they bought, isn't what they want/need, and they spend a bunch of cash trying to "upgrade" it, usually with poor results.