I did mine at Langley Helicollege in the R22 a few years ago. I went there because I had R22 time and ended up only doing about 3 hours flying which included the flight test.
I think back then the R22 was about $475 canadian an hour but didnt have to do much so was not really an issue.
I think it took a couple of weeks from start to finish as they set you up pretty good for the Transport Canada exam. They had alot of good practice exams that seemed pretty similar to the real thing.