If the silver price remains flat at AUD$26 the numbers work out to be ~ AUD$76 million for the silver component of the tailings deposit.
Personally I think the silver price will double in the coming years. And I think that NCZ can still renegotiate better terms with the smelters.
Also these numbers don't factor in the ~20 million ounces of silver that is indicated and inferred in the In-situ deposit.