Hello,
The golem manual (http://www.d20pfsrd.com/magic-items/wondrous-items/wondrous-items/a-b/book -golem-manual) costs 11,000 GP for one that aids with the construction of an iron golem. It states that it pays for the magic and for the feat.
It specifically states that it does not pay for the materials. The cost of the materials required for an iron golem are 10,000 GP.
As this makes the cost of an iron golem 21,000 GP + the cost of crafting the materials which I'm assuming since it's the only other thing included in the construction requirements that's not a spell.
Am I able to craft the armour and weaponry from the 10,000 GP of iron instead of paying an extra 70,000 GP for it to be already crafted.