You don't have PHP, it came standard only on Intrepid R/Ts and it was an option on 300ms. I would do more research on this site before you spend money on the KYBs. There have been several members here who had them and they got a ridiculously low amount of mileage out of them. I guess that's ok if you do the labor yourself, but if you're paying someone you don't want to have to replace them every year!
As far as the springs, the Eibachs have been discontinued so you'll have some trouble finding them. I have a set but I haven't installed them yet so I can't comment on them.