Hey man, I live in Quebec aswell. Recently, not including today unfortunately, its been pretty warm. Hell Yesterday it was 5 degrees outside. Its soposed to warm to around 7-8 degrees on wednesday, so if you're concerned about the weather, id wait until then. Other than that, from my experience spray painting stuff, the other guys seemed to have covered all the bases so far, so go with that. Goodluck with the paintjob, and I hope it works out well for ya.
I knew a man once who said "Death smiles at us all. All a man can do is smile back."