We're in the same spot. Going to order a new Landmark with residential fridge and that has been my question. Seems like there is no easy answer. Depends on whether you like sunshine or shade. If boondocking, what other electric draws will you be running. It does seem these new RV's use LEDs for most of the lighting so depending on you night time vision needs that's a plus.
We're not boondockers but we have drycamped a night or two and from what I understand two nights without running much more than necessaries two 12vt battteries will hold you over and allow enough power to run your slides and leveling.
So the question is how big of a battery bank you want, then match the solar to keep it charged.