Do you have experience winter backpacking, or will you be with someone who has?
VERY few people attempt this, in Jan. The problem is unconsolidated snow. You could easily be dealing with chest-high postholing, which snowshoes may not help. There is also significant avalanche danger up this route, and this time of the year may have significant snow loading on surfaces you will cross. You'd want an avalanche transceiver, training in it's use, and partners that know what they are doing with them, who practice.
This is not a novice or training route in snow work.
