Oh boy a reply!
Yeah hohenheim sure. I start with a basecoat of boltgun metal, then I give it a a wash of badab black (I used to use just watered down black paint to wash but badab black is reallly cool stuff). Then I highlight it with boltgun metal again, and if I feel like it up to chainmail or even mithril silver on the extreme highlights.
With the gold I dont have that mastered yet, its kind of hard for me. But I start with tin bitz and kind of work my way up to a mix of gold and silver.