Re: 77' Catalina 22 Countdown to getting her in the water begins (Lots of Pics)
Awlgrip would be more for the topsides anyway, rather than the bottom.
Something like Pettit Easypoxy or the West Marine generic equivalent could be roller brushed on the topsides by a semi-skilled amateur a lot easier than Awlgrip.
The plastic or rubbery spreader boots should be very cheap and easy to replace.
Chainplate and shroud attachments definitely deserve a hard look and fix-up, along with generally checking out everything that goes through the deck.
Congratulations on your new boat!