Ok i got my block back from RS and am in the process of rebuilding it. The thing i need to know is what can be reused and what parts i need new? (gaskets, head studs, etc.)

I already have:
bearing
head studs
clutch
resurfaced flywheel
pistons
rods

Also any tips or trick you have that would make the buildup go smoothly would be appriciated.

 

upper and lower gasket sets, water pump, timing belt,
prodrive oil pump gear would be a good idea too

 

is there anything else i need?