it depends on interchangabilty, you can interchange some parts but not all...on a 1500 there is really only a few things that you get performance out of..one is the coil overs the others would be the rear springs...whats easy on our trucks is its simplicity, like a straight axle, control arms etc..
with your your limited on hieght because of your cv axles, if i were you i would contact fox and see what they could do as far as your front coil overs and run some 2.5's resi in the back, tell them what you want to do with the truck and learn how to mess with shock valving
with the rear i would be getting intouch with deaver and see what they can offer in the rear leafs..alot of this stuff your doing will be a trial by fire, since no body has taken the time to do what your wainting to. with kore and carli they taken what nobody has done to the 2500's and made them capable of jumping a 8K ppund truck in the air..of course they learned the hard way so we can reap the rewards of there knowledge..
i would also be calling places like cognito or camburg that can re-work things like upper control arms with a uni-ball/ hiem joint. or build some nice knuckles...but like i said it will be a trial and error kind of deal and you will be limited on travel with the current cv axles...but man im sure something could be done, its just a road thats less traveled...
OH AND BRING A BIG WALLET..LOL