We are looking to find a guide who can accompany us in our vehicle for some touring of Tuscany regions-- Is it possible to find such accommodations. Otherwise, what seems to be "going" rate for a day tour of the Tuscany region. We thought for the wine tasting/tours we should hire a car (for obvious reasons) -- but are we able to navigate to areas such as Siena, Arezzo, Cortono, Pisa with a good map and GPS?