Fruit trees for zone 1

My Northern patch of soil has some amazing benefits. Mostly the seclusion, lake-front with creek access, and in the Summer almost 21 hours of daylight for growing things.
The downsides are mostly about the length of the Winter. pretty much 7 months solidly below zero (that's freezing in Celsius) and two shoulder months of light frosts.

I've worked hard to make permaculture work here, I've got a compost system that works (slowly), a RMH greenhouse that works to get tomatoes at least to the green stage, but perennials -especially fruit trees- have been a head-sctratcher.

Lee Valley just sent out this notice about some hardy cherry trees they sell, developed South-east of me at the U. of Saskatchewan:
Cherries for Northern Climates

Has anyone tried growing these varieties, any other info about them?

A little bit of research shows me that a 'local' nursery sells this variety. And local by Yukon standards means that they are 600km (7 hours) away. The next largest town down the road. And you can't get there by car, you need to canoe the last bit. THIS IS WHY I LOVE THE YUKON!
Klondike Valley Nursery
Prices range from $25 to $45 per plant so I want to make sure they will work for me before I order/drive/canoe to get them.

Tell me about your cold hardy fruit! And what you do about bears.
(Old timey film stock included for your viewing pleasure)

Can't tell you a thing about how they do in zone 1, but my mom and I each have a couple of these dwarf sour cherries, 3 hours apart on Van. Isl.

They seem to be growing well, but no fruit yet, because.. in both cases, they have been deer magnets. Each time a gate has been left open or a weak point found, these are the priority target. They are picked out as THE tastiest thing out of hundreds of other trees, bushes, and the entire annual garden... and accordingly stripped in minutes.

While they have recovered each time, it has definitely slowed things down.



How about electric for bears?


I always figured if I lived somewhere colder I would lean heavily on hardy kiwi, but even kolomitka is only supposed to be good for around -40... a couple zones short, on paper...