They often will. But I hate to be the bearer of bad news, but I think all the Burners are sold out. They may have some mediums. They also may have the conversion kits for the Blaze, which is what I am rocking. The Burner straps are super plush.
As far as regarding the G3 skins. They are way easier to handle. I got several buddies using them this season. Plastic anything can break if the temps get cold enough. Being that you are in the PNW, I doubt that will happen. But in Canada, all bets are off. The Spark tail kit, which I am also using, is aluminum, so it won't break. The tail strap is plastic though and it can.
Overall, I'd just go with the G3 skins, They are fine and way easier to deal with.