Thanks for reply. I contacted the Way of St. Andrews way folk. Their reply to my specific queries was that I should consider another route or "hire someone to walk with me".I have not walked this one, but will be a Pilgrimage I hope to walk at some point. This is the link for the Way of St Andrew's web site that covers the St Columba's Way.
Buen Camino
St Columba’s Way | The Way of St. Andrews Pilgrimage
Description From the historic Isle of Iona to the famous ancient pilgrimage town of St Andrews, nearly 200 miles of diverse and breath-taking scenery, along remote coasts, across hills, through glens, or by quiet roads through friendly highland villages. Certain sections may be unsuitable for...www.thewayofstandrews.com
Thanks for reply. I contacted the Way of St. Andrews way folk. Their reply to my specific queries was that I should consider another route or "hire someone to walk with me".