Before I come back for a bit of big noting myself I better point out that Jcoulter is perfectly correct and I'm talking GRAMS per tonne not ounces.
Some ounces would be nice obviously. But I'll settle for 3 or 4 grams per tonne, more than viable especially in a country with low processing costs.
And just for the record I hate people who have the funniest signature line in the forum!