Heres some .02 if you haven't made a decision.
If I can make 2 complaints about full timing with a diesel, it's noise and weight. Noise because, well, I'm already down by one ear, and have an older 7.3. So cruising around with the window down isn't really a thing. People turn around when I'm still a mile off... It does get frustrating. Weight is another consideration. I'm pretty heavy all the time. 8K now, but will be 10K easily with my future plans. That does limit you based on road surface and soil type, or road conditions (ice/snow). Lighter is usually better. Being a Jeep guy I'm sure you already know that. But aside form those things, I would still do diesel again (even if I had to convert an older SUV). This is simply because diesel gives you one huge potential option gass doesn't. Diesel heaters (for cold environments).
Some of the arguments here about fuel and cost, and what you actually 'need' in terms of pavement driving. Sure those are considerations to make. Myself, I drive a true 30/70 on/off highway. Maybe even a tad more heavy on the off highway side. Knowing I have the right capability in such remote areas all the time, regardless of road surfacing type, is critical to me. Even if I drove 90% highway. Not saying you need a 20" lift for highway, but you get my drift. Never know when a bridge turns into a ford (low water crossing), or a culvert turns into a 30" deep 4' wide washout, and something happens to prevent backtracking. Personal experience there.... Having a TJ myself, and still recovering from a back injury I also totally understand the comfort aspect. This is super important if one is going to continue enjoying the outdoors with comfort and mobility issues. The key here is to select the vehicle based on what you really want to be doing, but remembering not to go the 'all show no go' route.
One consideration, or rather a compromise, is consider a smaller rig? Maybe not a huge truck, but a SUV of some sort? Something that will still do what you really want to do. To me, if a vehicle won't accomplish what I want to do, even if it's only 10% of the time, but accomplishes the other 90% very well, it is still worthless. But that being said...in my particular case, a SUV would have been able to accomplish what my truck does that I 'need' (with some difficulty), and all of what I 'want'. So maybe some sort of ranking of importance to that 10% needs to be figured. But with this in mind, for me, if I didn't have to tow (live in a trailer), then I wouldn't even have a truck most likely. But instead have a SUV for a smaller footprint on those high elevation roads.
For another bit of info, my dad has had for a year (and 20K some miles) a 2018 Ram diesel. He loves it, even though its frustrating that the dome lights can be operated 20 different ways... If you are only considering new rids, personally I would not go diesel.