Spot on. Like Chuck says, will you have some problems? Yep - you'll have them with any coach. But at the end of the day do yourself a favor, write down a list of features that the Challenger has from day one. Prioritize the list based on how you believe you'll use your coach. Now find other coaches (DP or Gasser) that has the same list. I'll make you a bet, if (big if) you find a coach with the same sort of features - you'll pay at least $150,000 more. For us, the only coach that come closes to our 37TB coach is the Winnebago Forza 38W. Even then we give up 15 gallons of grey water - a big deal when you dry camp for 2-3 months per year.
Anyways - good luck with your hunt.