Could they not apply to get a working visa?
this process does not have any costs such as sponsoring as far as i am aware, well £100 or so but no great outlay, as my brother did a very similar thing a few years back.
In his case to obtain a Canadian work Visa from the UK he had to:
1. Get a written job offer (From yourself in this instance)
2. Show proof of qualifications
3. And lastly a positive LMO that once again you yourself would obtain...pretty much saying that it wont harm the Canadian economy by giving the job to a brit....
If you go to the CIC Canadian immigration website they have loads of info on a work visa, unlimited amount of working visas to Canada from UK again as far as i am aware, compared to IEC
hope this helps...if not let me know and i shall see if i can think of any other way to help!
The IEC (Working Holiday Visa) are closed from the UK. So the OP friend can't apply until the applications re-open in January/13. The OP only other choice is a LMO which s/he doesn't want to do.