Just use some gorilla glue or some other inexpensive industrial grade adhesive. Don't waste all your money on the yacht parts. Inject the cheap glue and use it until the bows fall off. It will buy you plenty of time to find another hobie for $500 with good hulls.
Chances are with delamination that bad, the glass has already been flexed and compromised in addition to the decades of normal wear and tear. You won't find anything but headaches in the "proper" repair of your boat when you see how much $$$ it will cost just to find more expensive damages down the road.
If fixed correctly it may last 10 more years, if fixed incorrectly it may last 10 more years? There is no equity in this boat except sweat so keep it simple. Trust me on this one. We just finished up another hobie 16 restoration and to be honest my last. If there was a hobie 16 worth restoring older than 15 years, I haven't seen it yet. These are simple boats so keep things simple. They're made to be used then thrown away. Gorilla glue will last 10 years. It isn't designed by chemical engineers in labs to repair multi million dollar cruise ships, but it will last many many years and work all the same for a hobie near the end of its life. I wouldn't bet millions of dollars on that, but I would bet a pair of trashed hobie hulls. Ergo, my recommendation.
This is incredibly bad advice.
Attempting an extensive repair with cheap, inappropriate materials to eek out a few more sailing days is irresponsible and potentially life threatening.
The hull is toast. Find another one in better shape. It's that simple.