I've driven in Jamaica since 1984, circumnavigated the island twice, driven on many a goat path in the sticks, and have logged ~3,000 kilometers. I wasn't driving a bus full of people though. You better be the straightest, most sober tourist in Jamaica and one heck of a driver to take on your plans. Jamaican drivers and especially truck drivers can be incredibly reckless and agressive. Are you really ready for a bus load of nattering people while driving on the left, shifting with your left hand and dodging people, animals, potholesand other drivers? With all due resoect, Marblehead thinks your bull goose looney.