I'm a former east coaster (well maybe not the coast but still)... After several powder days in Fernie and Lake Louise, I think I would spend more time focusing on my strength than on my gear. I was grinning a lot this year while riding the powder with a freeride board instead of a powder board. It worked fine but my muscles usually were way behind my ability and the ability of my board.
Train your quads, calfs, feet, abs, glutes, and anything else you might need while surfing the snow.
For what it's worth, I'm thinking about doing a couple cat days in the rockies next year and I'll be bringing my Burton T7.