All valid points and I don't disagree with any of them, in fact I've marveled at your build. I don't have the skills to do that on my own! My rationale...the shortest I could go is a supercab short bed, which buys me 11inches in wheel base only about a 7 % change. This would be much more significant if going from a 2 door jeep to a four door. Since the Tremor package runs around 4K, more than a non tremor, I don't think I could do the mods for much less, though there are still some mods I would want to do like the 17 inch wheels. Hopefully, selling a new Tremor wheel set could offset that or I have a dedicated set for winter travel (common in my area.) My thinking is that with the Tremor package, I can get pretty close to a stock vehicle that would allow me time to upgrade as I felt things were necessary, keeping the warranty intact. I do like the idea of the Tremor's trail control and rock crawling drive modes, realizing none of these things are truly necessary, but in some situations can be terrific. This modes aren't avialable in non-tremors. As far as the engine, it looks like the 7.3 has a pretty flat torque curve of 400 ft-lbs starting at 1500rpms while peaking at 475 near 4000rpms, the 6.2 is about 25% less than that even though it peaks at 430. This is not a big deal, but I live in the mountains and drive mountain passes on every trip so having a little extra power is nice. The 7.3 is paired with the newer 10spd transmission which I think will be useful in a lot of situations both on and off road. As you suggest, the big question is the reliability with the 7.3 and 10 speed transmission? At least, they are into the 2nd year of production. I'm not aware of any major concerns so far and having some piece of mind warranty wise will help with that. Anyway you raise some valid points and if I can find a really good local shop to help with some of the upgrades, going with the super cab would be ideal. Thanks for your input and this is an of example of why I decided to make this post.