Getting back to your original post – the passage from Cape Wrath to John O’Groats is, to me, one of the last great real life, wild and at times scary RIB passages.
Given your experience a detailed look at the charts along with relevant pilotage guidelines will clearly give you an appreciation of the challenges and risks involved. As said earlier your two main stops will be Lochinver and Scabster.
Lochinver is an ideal overnight stop – very picturesque - it has sheltered pontoons – petrol in the village and a whole range of accommodation. As far as I remembered we staid in Polcraig Guesthouse and the owner looked after us extremely well and even had a drying room which was mega.
Scabster on the other hand is a working port but I believe it should have pontoons by now – maybe someone will clarify that. Accommodation and petrol was, for us, in Thurso which is some 3 km away and up a big hill - a real PITA - but then you have no choice.
However as you know the biggest element of any journey of this magnitude is in the preparation before hand - difficulties with petrol et al only add to the “adventure” element.
Apart from all the typical considerations for a trip like this the most important one to me is the weather forecast. Once you approach Cape Wrath and realise how exposed it is/you are - you will know exactly what I mean. My thanks will always go to the Watch Officer in Belfast Coastguard who took the time to talk me through the synoptic charts @ 0700 on the morning of our passage – our forecast was in stark contrast to what we were being told by “others”. We were fortunate that our passage was going to coincide with a window of opportunity as we would be in the middle of two low systems and whilst the sea conditions were very fresh at time - they were not dangerous
The Pentland Firth is of course world famous - it fills and drains the North sea twice a day - up to three million tons of water per second and currents up to 16 kn water, but treat it with respect and you will be rewarded. Certainly a trip out to Scapa Flow is highly recommended.
As Paul said – any specific questions just let us know
Happy New Year