Considering purchasing a 2003 Monaco Diplomat 40 PWD

Purchasing the rig this week. Start demo work on Saturday. Looking forward to getting this going. I have since found out that several owners have had to replace the subfloor on similar models and years. The particle board the factory used delaminates and causes the floor to buckle. I am relieved to know that several others have successfully replaced the sub floor.
Again, thanks to all for the advice and perhaps some day I'll see you on the road.
Cheers,
TL