1Mag to fill in your answer for Boundary Bay, i'd say to go from zero - PPL,CPL and Multi IR you should budget about 25grand. And then once back in the UK, 3 grand for ATPLS and 10grand for converting the CPL and IR (about 4 weeks of flying).40grand for all the training would be a good estimate (plus maybe 3grand for accomm. while in Canada)
I know of one guy who trained at my school and now works for Easy, and he spent about that much.
Sorry i don't have any "Pound" sign on my ****ty Canadian laptop!!