Celebrity has "white Pass Railway and Klondike Highway Journey". The description is....step back in time as you board a vintage car and retrace the original route up to Yukon's White Pass Summitt. Upon arrival at the summitt, you will board a motorcoach for a narrated tour back to Skagway. Tour is 3hr/15min.
Now as of yesterday, Chilkoot had a price increase. Bennett train now $265, Yukon Rail now $230 and White Pass Summit now $160. And Celebrity has a black Friday deal for the above description $106.99. I think the price is going to override the desire to go farther than the summit.
Thanks for all your insight and patience.