In reply to UKC Gear:
We went to Lewis a couple of years ago and Rab gave us PDFs of his draft texts to use. They were text only with no maps or topos but we thought it was very well written and didn't have much problem finding the crags or routes. Which, considering these are sea cliffs which we approached from the top, I would think is a difficult task to describe.
So now, looking at the example pages with good topos, maps and photos, I think it likely that this will be an excellent guide. Looking forward to getting mine.