The 2001 Imperial is a nice rig built after Monaco bought the company but before quality control started slipping. I'm aware that Monaco started saving money by using Power Products jacks instead of HWH, and several owners have complained. I'm not aware of other specific cost cutting measures.
If you are buying from a private party, you can PM me. I may know the owner. Many HR owners are members of the HR RV club, and if you buy the rig, you're welcome to join. There is an active chapter in Edmonds.
Holiday Rambler Navigator DP, Hummer, and Honda VT1100C Shadow