I'll say this again. Get a driver for the week including pickup and return to airport.
He'll give you a phone and be ready to pick you up and bring you back as long as you give him a heads up a bit ahead of time. He'll even stick around if you you're out partying late.
No nickel and dime payments.
That's how Linston does it. http://www.redplate-negril.com or 376-3652
Cost is negotiable depending on how much you need him.