Personally I would go with a used sideXside. I have a Yamaha and a Kawasaki in both ATV and UTV. If I had to go distance two up the ATV seems too uncomfortable for both the passenger and driver. Get's cramped. The weather protection is much better on a sideXside too. A later model Kawasaki Teryx would be my suggestion. If it's only for the two of you the two seater model is less money and would have a large bed for camping supplies. Carry extra gas and water as well. That's a long ride. Maybe add a sound system too. I had a Yamaha Rhino and it was okay. I prefer the twin cylinder engine smoothness. My son in law had a RZR. It had better suspension but I trust the imports more for reliability. My Arctic Cat Wildcat sucked a valve. I still have a 400 single Arctic Cat quad. It doesn't get used much so I will keep that. If you are leaning to the ATV my experience with the Kawasaki Brute 750 has been very positive. I also have the carberated 650 Prairie but it's not independent suspension. Both have been very maintenance free. My Rhino blew a head gasket. Found out it was an issue with the early 700cc models. Normally I like the Yamaha lineup but the Teryx just had the features and size I wanted and a kicker of less money. My other Yamaha is the sport YXZ. Shits and giggle factor is high. Probably over kill for a camping machine.