Per annum @ 250tpd for 320 days/yr....
90,000 oz of Au ($150m)
25,000 oz Pd ($18.75m)
11,000 oz Pt ($18.7m)
Costs to mine will run about $30m per year
500 tpd will double these numbers and 1000 tpd will double the 500tpd numbers.
Looking at $200m to $800m per year in revenue growth from 2013-2015
5-7yr mine life in the current CMZ at these rates so significant expenses will also have to be incurred on exploration and blocking out additonal reserves to keep mine running after the CMZ is out of mineable material.
Again, all IMHO