Thanks for the comments all. So I’ve started booking so far -
I’ve decided on the calendonian sleeper to Glasgow and then use the Oban, mull route with a night booked at tobermory youth hostel the night before the ride. I must admit I did go for a seat on the sleeper, I know this was against all advice but £50 compared to a bed when hopefully I can get a decent night in tobermory before setting off just wasn’t worth it.
I’ve also decided against that way of coming back, in agreement with the comment made in the spirit of crossing the mainland. I hope for the corran ferry over fort William which means a little less distance down the a82. I think I would be there about 5pm and heading south to Glasgow from then.
Would this be a worthy alternative to the a82, it is a bit further but overall should work out just right on the overall distance, my main question is should these be better rides to ride from a safety point of view -
https://ridewithgps.com/routes/44892133I’m then looking at accommodation around scotch corner which would be just before the 600k mark for a decent sleep and I can have 20 minutes in a bus shelter on the nights either side of this.
From someone who mostly rides in east Anglia I’m not too sure how I will get on on the B6277, that looks like an experience!
Again, thank you all for the information.