Everything everyone has said(I haven't looked at the link for clearances)so far. Canada is much like the US, almost every person up there is great to talk to and ask for help. We found that when we ask about their Country and specifically about their area, they will answer and then ask about the US and our area of CA. So here is some of what we learned,
1. We entered from North Dakota and pretty much followed where you want to go. The only what I felt was a very low clearance tunnel wasn't. You might find it too low but we were 11'6" and it was fine. The local was just a block or two from the COSTCO store in Quebec City heading out of town was a tunnel and lots of scars on the arch and keystone. A very nice man I'm sure, came running from his little kiosk yelling at me in French and waving his arms to get going that it would be fine. He was right and that night I read up on and wrote down feet to meter conversions. My helper note on the dash was
2. Our trip was mostly in Canada from our crossing to the Maritime's and then down to Maine. I thought that the roads back in 2011 were fantastic. That is until we got to Quebec. It is enought to say we could carry on a conversation again when we rolled in to NB.
3. Boon docking is pretending your tent camping with a mattress and inside camp stove etc. The big difference is watching your Battery SOC(state of charge) and your tank levels. It's kind of nice when you are sitting in the middle of nowhere and you can see the milky way and even som things like N42 which is a Nebula in Orion. But if the shower pan suddenly fill with soapy water after you drain the kitchen sink, you will never again pass up a dump station if you have been out for a couple of days. As for electrical, I don't have 50 amp never have looked for it but judicious use of 30 amp will get you through almost everything.
4. The big problem will be in going home. I found crossing the bridge from Novas Scotia to Maine to be as distressing as leaving a week at a campground where everything was as close to perfect as you want it. Another thing I found was that we didn't spend enough time stopping at the side of the road to take pictures. Another thing was we did it off season and there weren't as many Canadians camping as there would have been and so our campfire conversations with locals was limited.
5. YES! While all signs are supposed to be in English and French, it is not true. They just aren't. Also and it is their way, on the West Coast(BC) it is English-French in Quebec it is French-English and not always easy to read at 90KPH. We found that most folks who speak french everyday, will help you with learning key phrases like please and thank you, where is the toilet or is there a toilet. Then they might even as you to translate and explain American English to them. The french speaking are just like us and really like us, so ask real questions about them and their fantastic country and they will reciprocate.
Now to places you mentioned, Bay of Fundy, a few kliks East of there we found a beautiful two story home that had been abandoned and to a very small degree vandalized. There was no paint left some of the glass was broken and the yard was choked with vegetation. There were sheer curtains blowing in a breeze and billowing out through the broken windows. It was beautiful and on a moon lit night it would have been spooky. We used one of my photos for Halloween cards this year. Removed the power lines accented the shadows and we had a photo for our card and have gotten a lot of where did you get the photos. Another in NS, leaving that area the next day heading for Maine, you climb up onto a lovely plateau covered with arctic tundra and ringed by a piney forest. It was Mid-October then and the trees were decked out in their brightest colors and the tundra looked like some vandals had taken buckets of paint and thrown it on the plants. There was red, and blue and green and yellow and even purple and orange splotches all over the ground covering tundra. If you like to remember trips you take, enhance your journals with pictures you take and post cards you buy. My final and one of my favorite spots is Peggy's Cove NS. I won't even try to say what is the most interesting part there. It is just a place you will remember forever.
I have gone on far too long and only covered the last two or threes days of several weeks up in the North, it is best I think to go without having seen it or heard all about it. The things you will see are amazing. Just keep the windscreen clean and the camera ready with fresh batteries.