Oil feed from block, oil return to sump, manifolds, gearbox, LSD, valve springs, decomp plate, sump depending on exhaust setup, arp con Rod bolts (can get away with), injectors, spark plugs, decent breather setup and a turbo. Pretty much a rough guide but you'll find plenty if info around here. Gjh is right have a budget of up to £2k. I've bought most of my setup and I'm under a grand at the minute but you'll be looking at another £600+ with all the ancillary parts and fitting