160 tons of black sands also includes2720 grams of gold not included in the $8400/ton valuation. This comes to about $136k. Also, the Assay was of raw tonnage. We have concentrated tonnage. This is all upside to your estimate.
At any rate, It is not worth it to argue with those disenfranchised. I think they are letting their emotions get the best of them. It is sad to see.