PhotoService on Notre Dame street in Old Montreal has D76 and chemical concentrates, paper, quite a bit of stuff actually. I think freestyle photo is still the better place to buy film (if you're buying bulk). My freestyle orders have always been shipped to a US address and brought back for me, so I don't know about any import charges, but I think it's all duty free, you would only get charged tax (probably fed and prov).
Mostly Minolta ! - X570/SRT101 + 28/3.5 | 50/1.7 | 58/1.4 | 100/2.5 | 135/3.5 | 135/2.8