Just an FYI regarding Jeep rentals on Lana`i. For an island that doesn't have too many changes (which is good) there is a change for Adventure Lana`i Ecocentre. Michelle is no longer with the business, and since she is who made them work so well, I can no longer recommend ALE for Jeep rentals.
Lana`i still has Dollar Rent-a-Car for Jeeps I would go with them since they have been consistent and reliable.
I have not rented from the new Hummer business, but they have had some good reviews recently.
Please do not let this change affect your interest in this very special island.