I realise we are in danger of getting into the boots v shoes argument, but nevertheless here is my opinion -
Unless you are going to take in some serious mountain walking on your trip, I wouldn't bother with boots at all, I'd use trail shoes, since most, if not all your walking will be on paths , lanes, & tracks
Now I only wear boots on steep ground or in winter
I have a couple of friends who've done LEFOG, and they both wore trail shoes, and managed it well enough