That is the first I have heard that the Canadian government requires a foreign sourced vendor to acquire about $2 of parts and support for each dollar the Canadian government pays them. To be honest, I actually think that's a smart idea. I wish our government would do that frankly!
This being the case, it makes really good sense to proceed with this acquisition. The jets won't show on the ramp until 2016 and by then the need for the jets could become acute.
The price works out at around $67 million per jet, and that's not out of line with the costs of other available fighters of significantly less capability.
I understand the concerns Canadian pilots have about two engines. However, jet engines today are vastly more reliable than at any time in history. Further, in a fighter jet the promises of true redundancy are reduced by the required close proximity of the two engines. If one rips itself apart, it frequently FOD's out the other one.
Ken