From here to MT the only hills are in West Virginia. Once in MT the Rockies are on the far side of the state. Yes, there are some exciting upgrades and downgrades in the Rockies. But nothing a well maintained me can't safely handle. I suggest the Canadian Rockies. Way better than the USA side. Glacier park and Banff are simply amazing.. on the way back, take mother route through North Dakota. Theodore Roosevelt part is one of the most beautiful parks in America. Have a great trip