Gladiator, Sankeshwar - Gadhinglaj - Ajara - Amboli Road is drivable - even I have driven on it. Sadly, I don't have the distances now. However look up http://maps.google.co.in/maps?hl=en&tab=wl Also, one of those road maps available in book shops will be useful to you in your trip and it will also give you the distances. Before buying one though, do look for the date of publication and try getting one that is the latest available. Wish you an enjoyable drive.