the heads been skimmed yeah?
so you should have ready to fit....
1 skimmed cylinder head
1 Head gasket kit containing 1 rocker cover gasket and other various seals and gaskets
1 sump
1 tube of silicone sealant (i'll bring up a tube incase we run short)
coolant
oil (car's max capacity is 3. something litres but the best way to do it i find is top up to just over 2 litres then leave for a bit then fill the rest from what you get on the dipstick, much more accurate than lumping oil in regardless)
also
do you have a timing belt or belt kit? may aswell change it if the belts age is unknown or suspect condition