We extend to you a cordial "WELCOME ABOARD !" Come on in, make yourself at home, we are a friendly group of enthusiasts, and we also appreciate the classic Chris Craft Roamer, Corsair, and Lancer boats too , as they are all on the same family tree and share much in common !
The through-bolting is the way to go. My 1973 had expansion bolts (little spring loaded butterfly ends) and not screws. I assume that was a previous owner fix to insufficient attachment with screws. Once I stop working on mechanicals my project will move fast. I have everything including the seats. I'm doing the final close-up on the motor now, miscellaneous openings in the intake manifold for sending units, got the dipstick finally reformed and installed, hooked up the entire water manifold. Today I make a special trip to the auto parts store for some fittings I could have bought on any number of previous trips, but at the time I didn't know I needed them (final hook up of the PCV system). I got the carb tapped for the PCV but when I went to re-use the stock PCV copper connection it was so beat up I decided to re-plumb it with something new. As you can see, this is a relaxed schedule with no rush (yet anyway).