We just started getting the Facebook Group (Shikoku Pilgrimage: Your Spiritual Journey in Deep Japan). It is at https://www.facebook.com/groups/1318545221639576/ , and yes of course you should join. Why? Because you would be so welcome! And, there are lots of people there with a lot of information to help you get around Shikoku much more easily.
Ok, so we are getting some very nice participants and some of them made some great websites. Here is one of them. Please check it out. The map alone is worth bookmarking. But there is a lot of very good background information too. Written in a friendly and informative manner. Wonderful!!