I'm not sure what "agent" you are consulting with, but you might want to contact Progressive yourself. They insure all styles of RV's as well as Commercial Vehicles, and I would think your Class B would fit in there somehow. Many folks here (myself included) have Progressive and recommend them for all size RV's. Then give the other major companies a call too (GEICO, State Farm, Allstate, Country, Farmer's, just to name a few in no particular order) for some comparisons, although rates may vary greatly depending on your state and driving record.