Wheelchair users in the accessible cabin (Mk 3) / double accessible cabin (Mk 5) on the Fort William Sleeper don't have access to the lounge car between London and Edinburgh because the train would be too long if the Fort William section had its own lounge car. So passengers share the Aberdeen lounge car between Edinburgh and London. An extra lounge car and seated car are added for the Fort William to Edinburgh section. This means Fort William section seated passengers are decanted onto the platform at Edinburgh and have to swap carriages after shunting. Also, the Fort William coaches not having their own lounge car between Edinburgh and London, Fort William customers use the Aberdeen lounge car. But they have to walk through all the Aberdeen sleeper coaches to get to it. This is obviously not accessible to wheelchair users. The result is that the Fort William sleeper is the only Caledonian sleeper train which has no accessible cabins with lounge access between London and Edinburgh.
I'm wondering if there are logistical problems with the seemingly simple solution: to put the Aberdeen lounge car at the other end of the Aberdeen section, with the Aberdeen accessible sleeper coach next to it on one side and the Fort William accessible sleeper coach next to it on the other. So both accessible sleeper coaches are next to it and wheelchair users from either can use the lounge.
I suspect there are physical limitations in the lounge cars such that wheelchair users can only get into the lounge from one end, also that it would make the logistics of shunting at Fort William logistically difficult or impossible, but I don't know so thought would ask.
The other thought is: is it potentially possible for a wheelchair user to get on the Aberdeen lounge car at 2030 in London, have a meal and a whisky then transfer to the Fort William sleeper car via Watford station platform or Crewe station platform? Have staff ready with two ramps, one at the lounge car and one at the sleeper car, and use the two or four minute dwell respectively to get off, down the platform and on again.
I booked the northbound Fort William sleeper without knowing that there's no access to the lounge car until Edinburgh. (Until a couple of days ago, the Sleeper website didn't make this clear.) I'm now really disappointed. Sitting in my room on my own with room service doesn't sound the same experience...