ah headgasket would be a major one, also new ARP headbolts, mainbolts
if ur gonna do that much work, then getting the crank shotpeened and a good look over wouldnt go astray either.
Its extra money, but if ur gonna go the whole hog, then wouldnt getting some sort of porting done to the exhaust and inlet be an idea as well.
You can get Pistons and rings in a Kit, ACL do this (fogies)
the conrods come by them selves, usually with ARP2000 bolts.
You can get Cams and gears in a package buy, just have to look around but make sure u get the correct cams to suit ur needs.