Dyno, may be farther than you want to travel, but, Dylon Thomas of SURFSKI KAUAI can set you up. He offers all kinds of rental options and downwind shuttle service all around the island. He set me up with a brand new Stellar SE for a 9 mile downwind run off the north coast of Kauai. Absolutely fabulous run and my favorite of the Hawaiian islands. He's on the North shore (wet tropical side vs drier southwest side).
Good luck.
