Nice progress Si.
I hope to get a WIP going, but I dont feel confident enough yet with Z to do something good.
Think I'm going to get the glen southern DVD for some reference.
I think a 3d texture placement would be a good start for texturing this beast (as its a block texture so it should start for stone), maybe with the incandesance "dust" style shader for the creases to give it some age??? Just a suggestion
"No pressure, no diamonds" Thomas Carlyle