Both are classified in your registration as "experimental". The category for EAB says "am built"; the category for ELSA says "kit built." The Canadian letter does say AW Cert "experimental" - registered "am built." Not sure the Canadians are quite that a___, but they might be. Then again, they are probably as confused about ELSA as most. Obviously they are making a positive move to allow experimental aircraft in their airspace...why would they intentionally exclude the RV12...don't think so.
The medical...still gotta have that one.
And yes, I would do it if they had AVgas or Mogas. I have been around the U.S. in mine on both and it works fine...just change the oil at 25 hours.
On 2nd thought...the mosquitos up there are too big!