Hi Cariboo Canoe, and welcome. The trip planning alone would be thrilling research enough to fill so many long days and nights, the physical journey itself would be epic. I'm glad you mention history, as I think that might be a cornerstone to build such a trip as yours on. Actually paddling and portaging through it, with it and because of it, could colour a trip log uniquely. And then of course meeting and making connections with people along the way will also make it special. I guess I'm getting carried away a little with your plans; I think they're intriguing. Best of luck with every step of the way.