Besides craigslist, are there any good ones? Trying to sell my cargo van but not getting many cl hits.

well this website used to be called island previews, and it was pretty good the last time I needed it (bought my motorcycle from it):

http://www.hawaiiclassifiedsplus.com/listings/

they changed the name to that, not sure why, but you might want to try it.

There's also http://www.forumshawaii.com/  which a friend of mine bought a car from a couple of years ago,  I don't go there very much, so YMMV.

IMO craigslist is the gold standard even in Hawaii.

Hope that helps, good luck with the van.