I have the same exact Jeep.Are you worried about not having a back seat?If not I can give you some ideas and demensions if you need.
lol for 7k u got *****, i got 2008 jeep with 22k miles for $16,000
check with your waranty to make shure it does not get voidby you adding all this crap to it.
high output alt, + wiring + extra batterys = void waranty I believe.