i remembered reading IGR DFS when it came out. It basically had cash cost c1 and c2. I think c2 is acceptable as it includes on-going capital expenditure.
Only the really profitable companies release total cash cost. PRU is a prime example and even their MD has said it before. We (gold companies) are our own worst enemies. Publishing unrealistic cash costs of like 600$ is just begging to be taxed by governments.