I am leary of the approval in that short a time frame, anything with the government (US or Canada, or any) can and often times will be delayed due to endless supply of red tape (who makes red tape, we can invest in that). However I would think (just speculation) that the governement would want to drive the approval thru to secure the $ esp with other firms pulling back some of thier investments due to the royalty changes.
I do agree that construction could be faster for both the reason you stated (experience), but also due to less competition for resources (men and material) since others are not being as agggressive due to royalty changes.
Just my 2cents (which is worth about 1.5 cents now due to exchange rate).