Try La Marianna on Sand Island access road. They allow liveaboards. You might be surprised at the listings on a bulletin board or whoever you might talk to at the bar. Walk the docks at Ala Wai Yacht basin but be aware that the state does not allow transfer of slips with transfer of
ownership. You might get around that by making a deal with the
current owner.
Craigslist, bulletin boards and the local Yacht brokers are the only way to keep up with the boats
for sale. If you are military then check at the
marinas at the local bases, i. e. Kaneohe, Hickam/Pearl.
Ko'Olina has high prices.
kind regards,