He'll need a carb gasket, intake gaskets, a timing cover gasket, a distributor gasket and if the heads come off he'll need head and exhaust gaskets. Maybe oil pan gaskets if the timing cover isn't being cooperative. A gasket kit will come with valve seals too, which he might want to change while the springs are off. While everything is apart it'd be easy to change the fuel pump gasket and water pump gasket.
I could see a full gasket set being useful even if all the gaskets aren't used. Most of them will be.