I went to college in the field of environmental sciences, specifically fisheries management. It was a hard-science degree (BS not BA) and required a LOT of biology/botany/forestry/ecology/org&evo bio/chemistry classes. One of my jobs during college was working at a big commercial hydroponic greenhouse growing food crops. I didn't even smoke back then and thought it was funny that pot plants kept miraculously appearing in among the veggies, lol. I've always enjoyed gardening though. Skip forward several years and you find me in a soul-sucking indoor job. Gardening is a major way for me to stay sane, lol.
The trick to growing far north is finding hardy, localized strains. Even autoflower lines start to make sense when you get past a certain latitude. Have you ever heard of 'Manitoba Poison'? Might be worht looking into as I believe it is meant to live up there. Double check that it is indeed an outdoor strain. You need an OUTDOOR line developed for early harvest.