In reply to JStearn: Have you done much alpine stuff? Or ice stuff? Before venturing onto an alpine multiday route In January, you’d likely want alot of experience as its frigging cold.
I.e. if it was me i’d probably want to have done 80% or 90% of your wish list in more amenable temperatures, and even then I’d be too freaked even thinking about the cold and amount of kit needed to combat it and climbing at a relatively tricky level
Check out the video of Tom livingstone and Pete Graham doing the Walker spur late March as evidence of alpine winter cold...