Excellent information John and we know its current since you live there. You're no n00b in my mind Mr. GPS!
The prepaid Telus comment I saw was last year on FB, but with as quickly as things evolve in the cellular industry, what's here today might be gone tomorrow. I'll ping Chris for you Darren over at RV Mobile Afficianados and see if he has any relevant advice.
Edit: Darren, do you by chance have the unlimited data plan (up to 22 GB per month) and also subscribe to DirecTV? If so you have free roaming in Canada, but let me know.