I am considering a KJ also, but probably would have to be an '05-'07 with six speed manual. Would def be a little peppier than the 4 speed slush box.
On the 4.0, if you have a mind to there is considerable aftermarket support for mods, turbos, etc. The 3.7 there's about nothing you can do with them.
I'm with you on the 4.7. I hate to pay for all the stuff I don't need that comes with the Hemis. The 4.7s do have a bad rep, but I think the later ones are OK. Like everything else, maintenance is very important. BTW, this is hearsay. I've never owned a 4.7.
Yeah, unfortunately, the 3.7 has no aftermarket, and I don't believe there is much for the 4.7L (at least, the pre-'08 version). I really did think the KJ was a decent DD. I'd like something a little larger like a WJ/WK or XK.
Any experience with the XK's overall? These are built on the WK platform. Any thoughts on the pre-2008 4.7L on the XK/WJ/WK? Is there a good way to check if they've been maintained? Problem is, most of these are at ~100k miles, so it's tough to say if it's been properly maintained. I feel like the 3.7 was barely enough in the KJ, so in a WK or XK it'd be underpowered. The early 4.7L wasn't much better though, at 235hp/290tq. I think the 3.7 was 210hp/235tq.
Part of me just wants to bite the bullet and just order a WK2 Hemi Trailhawk and maintain the shit out of it for the next 10 years so I know the history and all. Then I see the payment and come back to reality.