I just ordered the X254 today! Super excited! We went with the upgraded A/C. It was just over $100 so seemed well worth it to me. We sometimes camp in the desert and I have read other posts about how their A/C couldn't keep up with the high temps. plus I think it is good for resale. We also got the 2" suspension kit. When we looked at the model in person it sits really low. Even with the 2" I'm still a little worried about that. Does not raise the axle but raises the box off of the axle. We also got the enclosed underbelly because I don't like to be cold and I want the option of camping in colder weather. Was only a few hundred more. We skipped the t.v. because we could get double the size for half the price on our own. Also skipped the outside grill as we have our own portable one already.
We have 4 kids so the quad bunk seems like the ideal setup. They all have their own space. There is a table that can go in the middle of two bottom bunks so I can see them sitting there playing games. Shelf there too for another t.v. just for kids I suppose.
Might have to build some guards on the top bunks though because of course younger kids want to sleep there. Would be a hard fall. Going to shop for aftermarket ladders too.
We'll be towing with a Ford Expedition so I think you'll be just fine with a Ram. I have crunched the numbers over and over again to make sure we were fine with payload, tongue weight, etc.