Trim levels are negotiable but once you go down the 2 door or 4 door path there is no turning back. It's irreversible. . Compromises either way. In terms of highway drivability it's the 4 door hands down. Longer wheelbase smoothes out the undulations and pertubations. That's why I like the Gladiator. I had a shorty stepside and it rode like a bucking bronco. Offrode was a different matter. Depends on the resonant frequency which depends on your speed and what you are driving and what you are driving over. Everything has a resonant frequency. Humans also. Topless is the way to go. Once you lose your youth it won't grow back so keep it going as long as you can. If it starts raining just speed up.