Quick point I'd like to mention, the Rebel is a considerably less significant departure from other Ram trims than the Raptor is from the other trims of F150.
With a Rebel you get a slightly different front ride height (same suspension as any other 4wd, just different struts), a front bumper with better approach angle, limited slip rear axle and all terrain tires on 17" wheels. Everything else is cosmetic, and all of the functional enhancements can just be added to any regular 1500 without drama.
My 1500 Tradesman didn't have skidplates, tow hooks, all terrain tires or raised ride height from the factory but I bought those things and an aftermarket high clearance front bumper & voila I've got everything a Rebel gets, except the fancy tire-tread pattern seat fabric.
I'm not suggesting there is anything wrong with the Rebel and maybe it speaks to how capable the platform is even at its most basic.. not a lot needed to be done between landscaper's truck and Rebel.
But yeah in the context of covering distance, "overlanding" whatever - I don't really see an advantage to the Raptor or the new Ram TRX. Clearly they have meaningfully more robust chassis and suspension there's no argument, but I would argue whether or not there's anything wrong with the base model of either vehicle. When I have a long journey the last thing I want to be doing is travel too fast for the terrain and risk severe damage and being stranded, or having to abort my journey.
I also don't really see an advantage to the Rebel trim if it's going to cost significantly more to buy, in particular if you have plans to upgrade the suspension and tires anyway. A Rebel on Bilsteins has exactly the same suspension and ride height as a Tradesman or Outdoorsman or Laramie or whatever other trim package on Bilsteins or Eibachs or Superlift/Zone/BDS/whatever because the only suspension difference a Rebel has are the coil spring height and the struts, which you replace with any kind of lift.
What the cool-package trucks do really well is look cool. Which is good, I'm not hating on appearance. But if you're not financially comfortable to drop money on something as superficial as how something looks then you're pretty foolish going into debt over vanity.
I also want to add for OP, I don't want to suggest the Ram platform is better or worse than any other - it happens to be the one I am closely familiar with but I am not loyal to any particular brand. If you find yourself shopping Rams there are two different transfer case options, multiple engines, multiple transmissions.
Transfer cases: either an automatic TOD type or a conventional part-time one. You can tell which is which by the button, one will have auto the other won't. The auto one is nice for stock or near-stock sized tires and general purpose use in all weather and terrains, but it does not 100% lock up - drive to the front axle is always through a clutch even in low range. This frustrates some owners who equip 35+ inch tires and work the truck hard off road.
Engines: the 4.7 and 3.7 I think ended in 2012 or 2013. They both kinda.. aren't that good. The 5.7 is decent and apparently its worse achilles' heel (cam failure) was permanently fixed some time in 2016 or 2017 - well that's the rumor anyway. But failure rate before that is low. People get all witchcraft about oil and stuff, I'm in the "use what the manual says" camp on that. The 3.6l V6 is an exceptionally good engine, and I wouldn't hesitate to buy a 3.6 powered Ram, it's simply not a handicap like older 6 cylinder full size trucks may have been. I don't know a lot about the ecodiesel except that I never seem to hear anyone complain about them so it must be reasonably stout.
Transmissions: older V8 trucks (through around 2018-2019 or so) in the lower trim levels could have the 6 speed RFE transmission, all 3.6 and most 5.7 trucks after 2013 or so have the 8 speed. Both are good transmissions, there is nothing at all wrong with the 6 speed but the 8 speed is basically the best automatic transmission made. Neither of them has lifetime fluid no matter what Ram says, change it at 60k miles and if you get a used truck with unknown service history, change the fluid right away. Either transmission is easily a 300k+ mile box if you just stay on top of the fluid maintenance and don't go out of your way to beat it up. I think the diesels could have either the 68RFE or the 8 speed.
Hope that's helpful and if you wind up shopping Rams and need more info just ask.