When we bought our first Newmar motorhome with the pegboard compartment, the salesman expounded on it saying "in here, you can hang all your tools...and pick them up off the floor of the compartment after each trip."
Oh, as for the fuel mileage, it depends a lot on your driving habits and the terrain you travel in. Expect 7-9 mpg. The 360 HP will be adequate, though you probably won't win any drag races. We had a VTLE with 340 HP and traveled all over the mountain west. On really nasty grades, we would get down to 40-45 mph; better than heavy trucks.
Jim (W7DHC), Diane & Mini Schnauzers, Lizzy & Ellie
2018 Mountain Aire 4047 + 2014 Honda CR-V "toad" w/AF1