Well, considering the interisland shipping costs (plus plane tickets and hotel), that might get expensive... Might be cheaper to rent a four wheeler (I remember a friend of mine rented a Land Rover on Lanai and we took the trail through Lanaihale - very muddy and that old Buick/British Leyland V-8 had trouble hauling us big guys around)...
There are a few places to go off-roading over here (I just posted a few more pics from today's run)... The Big Island should have more places - if just due to the sheer size of the island... But if you decide to come to Maui, let me know... Hey, maybe we can schedule something when Cyclemut is out here...
By the way, KrisJon mentioned having XCH get more active... How's that going?
Bill