The last time I went, there was a helpful website in Canada about transporting firearms into the country. It had the forms you can fill out and instructions on the regulations and how to follow them. Even I could understand so I think you will be fine. I also had to complete the Customs/Boarder Protection Certificate of Registration declaring personal effects taken aboard. I know I had to take my rifle, spotters, cameras, etc and show them to an officer at the airport before I took them across the border. I did that a week or two prior to leaving.
It seems like you are well traveled so that's probably nothing new to you, but I do envy your opportunity to "get out of Dodge". Have fun.