LJ,
We drove from Brunei and kept our gear and or unused stuff in our car - we parked in front of Kinabalu park office and at the Kinabalu airport (when diving sipadan).
Assuming your flight to KK; you can keep your gear at left luggage facility in the airport.
Smart way to travel and to save time/money. Good on you.
Thanks for posting your report on your dive. It was a great read.
