I have recently heard from some applicants that they are now able to get their IEC visa issued for two years when they arrive, as long as they can show proof of insurance for the full two years.
BestQuote Travel Insurance Agency provides free online quotes that allow you to compare coverage between all the major travel health providers in Canada. There is only one company that currently allows you to purchase the coverage for longer than 365 days. They will allow the purchase for up to two years (Although, the policy is not suitable for anyone with a diabetic pre-existing condition).http://www.bestquotetravelinsurance.ca/International-Experience-Canada-%28IEC%29-Insurance
Simply get a quote by entering trip info in the green quote request area on the left. The two year quote only shows the one company, the one year quote will show all of them.