Coronados aren't the strongest built boats out there but should do fine for a trip to Hawaii. Looks like the boat is the same hull
as the Columbia
26 but with a more cruiser oriented deck
. I owned a Columbia
26 in the Islands for a couple of years. Sailed it between the Islands a number of times. The boat tended to pound badly going to weather
in the steep waves of the channels going east. Might think about adding tabbing to the main and forward bulkhead and a couple of glassed in stringers in the v berth area.
The boat was directionally very unstable. Had a bad habit of stalling out the rudder
and rounding up out of control in gusts. Figure out your self steering
early and sail it in strong winds to be sure it will handle the lack of directional stability. Be sure you can reef the main quickly and easily. The sail to Hawaii is largely down wind
in moderate conditions that the stock boat will handle.
The return would be a lot more of a challenge and I wouldn't want to do it without some reinforcing as mentioned above before attempting.
It's an old boat so rigging, including the chain plates, should be carefully inspected and probably replaced. You can do it yourself with StaLoc or Norseman terminals in less than a day. The stock rigging was plenty strong, wouldn't oversize it.
Find the leaks
and there will be some if not a bunch. Do your best to permanently fix them. Nothing more miserable on a long passage
than to have to sleep in Foulies because your bunk is soaked, BTDT. My Columbia leaked badly largely because of the use of sillycone for bedding compound. Would have removed everything and rebedded it with LifeCaulk or butyl if I'd kept the boat. With the lack of a bilge
sump, any water
that gets below will soak everything that touches the hull
right up to the gunwales.
I sailed the crap out of the boat. Made a couple of trips across the Molokai Channel when all the other boats turned back because of wind
and waves. Was not a great cruising boat because of the lack of directional stability but the boat will handle the conditions. Don't know many smallish fin keel
cruisers that will be more directionally stable, however.