As far as I know, the only place in Canada that does JAR training is Moncton Flight College. Keep in mind that only the JAR flight training is conducted at Moncton. It is my understanding the 14 ATPL(A) exams still have to be wirrten in the UK (or equiv JAR state). There are a handful of UK-based distance learning providers for the theoretical exams.
I'm also a Canadian CPL/IR holder, but live in the UK now, and the first thing you'll notice about pursuing the European licence is the high cost of training and very structured syllabus.
Good luck.