How hard would it be to build a "space suit"
I don't necissarily need it to be so tight it can operate in the vacuume of space,
Just enough to keep the Canadian winter off my face.
Climate control like heating and cooling and ventilation would be a plus but not totally necissary.
goggles and a scarf?
as for heated clothing, this is something i have actually researched pretty extensively and it's not really viable unless you have a ton of money to drop on expensive Li batteries or you're also using a vehicle like a bike or a scooter. If you have a powered scooter you have an essentially infinite power source from the alternator / generator. Otherwise you're going to be lugging around huge batteries or paying out the ass for Li-ion and still having to carry quite a few of them to get any decent heating time. The heated jacket itself is pretty simple, though, just run a bunch of (electrically) insulated heater coil wire through a jacket that is made of something that is relatively flame resistant and have some way to regulate it so you don't cook yourself or light yourself on fire.
>and plug myself into it
I too dream of plugging myself in to RTD2.
Your body's pretty airtight anyway, which is why you don't slosh all over the floor.
All a spacesuit really needs to do is stop blood pooling in your limbs (tight rubber can do this), supply air around your head (so you can breathe it, and because that's where your vacuum-sensitive ears and eyes are), and keep your temperature within survivable limits.
OP, you need the opposite of a space suit.
The primary problem in space is cooling, because no air means no convection and no conduction.
Whereas in Canada, your problem is too much cooling.