Great adventure. My wife, dog and I drove from Whistler to Toronto twice last year in our Gen2 R1S (we've also done it twice in a Tesla Model Y). We're lucky that our dog loves it. Lots of fast charging options (at least in BC and Southern Ontario), but the on-board route navigation system...
We just got back from driving our Gen 2 R1S from Vancouver, BC to Toronto, ON (and back). Plenty of Tesla superchargers, even in remote places. But we found that Petro-Canada and Flo fast chargers were much less expensive. Not quite as fast as the superchargers, but fast enough, especially...