I'm in the process of purchasing a new motorhome within the next 2 years and looking for some advice. I'm doing some research on the best and most durable motorhome to purchase. I'm the type of person who likes to buy something once and not regret it later. Looking for some advice on the 40E Excursion. Also which engine is better, the Cat or Cummins. which chassis gives the best ride and what is the difference in them. Thanks for the help!!!