I'd be surprised if they have the bolts(well the right bolts) so go down to ford and pay the $80 for a set of AU falcon headbolts.
Repco is the best place to go for headgaskets as they sell quality ACL gaskets, whereas most other places sell the cheap and nasty Gas Miser and Ezyfit and when it comes to headgaskets I don't like skimping quality.
But they will probably try to charge you $70+ for one so when you go in there tell them you can get it cheaper else where for like $50 and they will drop the price down $10-$20 for it from standard(hehe, repco are good like that)
Oh and make sure before you put the new gasket in that the block surfaces and head surfaces are thoroughly prepared, by sanding the block back with fine sandpaper until it's back to shiny metal surface, and clean the head surface with some petrol. Good luck dood.