Bring anything you can thing of. Shipping is expensive. Sacks are usually $70 for the cheap stuff. At least on Oahu. If possible bring corny kegs. A great thing to have out here. People even sell them for a lot on craigslist. Supply and demand I guess. I would focus on any large items for brewing. Specialty malts, hops, and yeast is easy to get here for a decent price.
Ægir was a god who would host a party where all the gods would drink the beer he brewed for them. He made this in a giant kettle that Thor had brought. The cups in Ægir's hall were always full, magically refilling themselves when emptied.