there have been way smaller boats that have made way longer passages... safely.
some boats are stronger than others, but if you dont encounter storm force winds and waves, how strong of a boat do you need?.. and what if you do encounter storm force winds and waves... can YOU handle them?
also, what kind of shape is your boat and rigging in? in top condition, im sure the boat would make it fine, if its handled right.
if you can take your boat offshore for some coastal cruising in a storm and stay out for a couple of weeks or three without making port, and you can do this routinely and without worry or question, then I would say that you and your boat are more than ready for the trip to hawaii... but if you cant handle the coastal cruising in bad weather for a length of time, where you at least have the option of running to port, or calling the coastguard for assistance, then you arent quite ready to chance a trip to where you have no options other than to sail, sink or swim...
and the boat is stronger than you are, but when you have something go wrong when sailing local, its really no big deal... you lose your relaxing fun day on the water cuz you have to go in and get it repaired, and all this change of events is a pain in the ass....
the very same scenario out there, could very well be a life altering event.... maybe worse.
and on the other hand, the trip to hawaii could be no more eventful than a trip to catalina island on a good day.... so you gotta plan for, and expect the worst, hope for the best, and pray that you will have some luck if you should need it...