Yes, I found the AHS communication a little wanting, also. Nature of the beast, I suppose. I recall Libby was the person I worked through. Very nice.
As Steve mentioned, I am also a little surprised about the TC location. However, I think we are lacking information. I know there have been yearly crews working lower on the mountain, and it may actually be the area around TC that may need the work.
This is a SERIOUS trail, with much stonework involved. This is the hardest work that there is. I've done stonework on trails where a crew of 30 spent a week on 100 yards. I'm not carrying the 50# rockbar!

BTW, I'd be surprised if you needed the technical gear to climb at that time. You'll have snow to walk over in places, but you should have a clear lane by then.