Think you have a bit of research to do, here are some pointers. Firstly, look at pilot licencing on the transport canada website, you will find its not quite as simple as 'transferring it over' . The only simple licence to transfer is an faa one. Also, can you get a work permit even to instruct let alone work as a cpl/ir? The canadian commercial sylabus is similar to the uk except the canadian one includes spinning. I dont know about the ir but I expect they are simikar, with probably more attention to real world on the canadian one, I cant speak for that personally. Canada is a little less per hour than the uk and similar weather, and a great place to fly. I also suggest you read some of the other threads in here about european pilots flying on canadian contracts. Hope this helps.