K2 owns LINE, so you could you get LINE gear as well, and probably Full Tilt boots. Come to think of it, that is an excellent choice.
Personally, I would go for Atomic. I love what they are doing with their boots, and they have park skis, pow skis, Alpine bindings, AT bindings, Alpine and AT boots, helmets, goggles, and skins. basically all the gear you need, besides outerwear.
If I had a second sponsor, It would have to be Under Armour or Nike. so much good sports wear, streetwear, midlayers, and sick outerwear.