Honestly it's going to vary from driver to driver when it comes to private taxis which I assume you want to do rather than route taxis. That's way too high from Kuyaba to Treehouse, it's like a one to two minute ride. Just walk out on the street and negotiate. To LTU I'd figure ten dollars a person roundtrip so $50 for five. If you want someone who won't rip you off then call Vernon Francis from Vern's Jamaica Taxi and tours. (876)862-2677