Main concern, check these. The RR4R or R4R chassis can be ruff riding. My daughter has a 2005 36 Monaco and it cost around $7K to have everything shipped to Alaska and have the work done. They also had the 4-Bag Ride Enhancement Kit installed
http://sourcerv.com/trailing_arm
http://sourcerv.com/REK4
Cat or Cummins
JR
2006 Country Coach Inspire 360 40ft Genoa Designer Series Cat C9 Samsung 197 RR
Aluminum Radiator was recently replaced with a STEEL & COPPER Bolt Together Radiator w/ updated rubber mountings
SilverLeaf VMS 330
Toad--2011 Ford Edge Sport, Air Force One
:C