1. The Eye:  Even if activated would be blind. Its single glass lens has been shattered.
2. The Brain: needs a new human, dwarven, elven, half-orc, or half-elven brain.
3. The Heart Cog:  the exact shape is described in the schematics. 500 gp worth of mithral will suffice to make the heart cog.
4. The Reservoir: needs a new glass reservoir where the four primal reagents can mingle and power the golem.
5. The Reagent of Fire: needs ten doses of alchemist’s fire.
6. The Reagent of Ice: needs ten doses of alchemist’s ice (sometimes also called liquid ice).
7. The Reagent of Acid: needs ten doses of a potent acid.
8. The Reagent of Electricity: needs a large supply of lightning elemental blood.