Walking from Siena to Florence in May


New member
We are a couple planning a walking (only- real hiking) trip from Siena to Florence on next May.
We already booked hotels in villages on the way: Vagliagli-Gaiole-Panzano-Strada, but we find very difficult finding maps and moreover instructions for the walking paths. We bought all Kompass maps available, and yet, it doesn't seem enough and we also know the paths are not well signed.
Has anybody done this itinerary and can help us with information?
Second issue: Does anybody know a local company (or local private driver) who could transport our luggage from one village to the other?
Thank you in advance!