Incredible video mate. Loved every minute. I spent a fair bit of time up there myself in 97/ 98/ 99. Used to stay in a guest house right by the footbridge by the yard there. You did well to see so many dutch 37s. I think you will find that the 153 shot is 294 mate.
Superb stuff. That was a great period for freight on the West Highland line. I remember the walk to the shot where you filmed the freight coming round (last bar one) which I understand is 37406.
Terrible as 300 were built but we still can see them somewhere in the UK everyday, and sometimes in the highlands. I must thank you for finding this old video of mine.