Am planning to visit UK with wife in Sept/Oct '15 on a Great Britain by Rail trip. Beginning in London we would travel clockwise up to Inverness and back to London. We would like to take a sidetrip when we get to Inverness and take the train to Thurso, cab to Scrabster and ferry to Mainland Island Orkneys for 2 days or so and then resume the rail tour back in Inverness. Any suggestions or comments on this proposed undertaking. How difficult is it for 67 year olds to carry our wheeled luggage from the train to the loding for any given night?