My concern with Hawaii reseller or consignment shop is that sometimes the seller does not know Hermes bags well so they cannot spot a fake. I have actually seen a reputable consignment shop in Honolulu display a birkin which I believe to be fake. I have decided that it is not worth shopping at consignment shops there. That is the same problem I am seeing in some (not all) of the Tokyo consignment/reseller shops as well.... I would rather do a walk in to the boutique and chance upon a bag... you never know....
Then you're close to RHC. They're maybe three miles apart. Check both out because they have different stock. AM has more SLG and RHC has more accessories.
The Hawaii Hermes boutiques have the friendliest staff anywhere IMO and loads of great stock. You will have such fun! I LOVE the Waikiki Hermes. Wish I were going!