Thanks for the replies and yes I can see the 4x4 track using Bing maps(Google maps shows to much snow to be useful). Looking at it closely though the point at which it leaves the path seems unclear but it may be clearer on the ground. I think I'll use the 4x4 track as my FWA and see if I can make it up Beinn a Bhric and maybe Leum Uilleim as well.

Alan - yes I am already in on account of not getting in last year. I've chosen Kilchoan as my start for 2018 and I've got my sleeper ticket booked already!