Just to be clear, 9 days of riding with time on either end for travel, sightseeing, bike assembly/disassembly. 400-500 miles is probably the maximum distance. @
Jim from Boston two summers ago I rode from Boston through Cape Cod, and my sister lives in the suburbs, so I've spent plenty of time riding in your area. It is very nice there, but not quite what I have in mind.
Going to have to look into Canada further. Sounds like many nice rides there. Never heard of Icefields Parkway. Looks stunning. My mother (rest her soul) was Canadian, and I have many relatives in Quebec, Ontario and Nova Scotia that may be due a visit.