I am in need of replacing my clutch, which has started to slip under load only after 28K miles of street use.

My car has been mildly modified (larger cam, mild head work, bigger injectors, wb tune, etc...) and is about to roll out with a few more bolt on goodies, such as a set of Dyno Don's headers with dual cat y-pipe and a completely revamped rear suspension components to improve traction.
I have been looking at the RAM clutch kits, but have a hard time determining what to get. The car will see mostly street use and I would prefer to get something that wouldn't require both feet to push the clutch in. However, I would like to get something that would handle the extra power the car makes better than the Rhino clutch kit that was installed in it when the engine was rebuilt 28000 miles ago.

I have found three choices from RAM that might be applicable. These are the RAM Automotive 88730, which seams like a stock replacement, the RAM 92730 Muscle Car Clutch Sets and the RAM 98730 Power Grip Clutch Kit, which is made of iron/organic friction material. My car has the modifications listed in my signature with the addition of the Dyno Don's headers and y-pipe, a spohn tunnel mounted adjustable torque arm, and founders performance adjustable LCAs and PHB. Would the Ram power grip be over kill for what I have? Does anyone have experience with these? What is the pedal effort like? Any suggestions would be greatly appreciated.

Thanks in advance.