I've done a quick skim through documents as a friend is invested...

I've done a quick skim through documents as a friend is invested here and he asked some questions. It doesn't appear that AISC or Cash Cost is something being promoted, which suggests it may be on the higher end of the spectrum? I did some rough numbers and came out with possibly a cost of around $21 oz for the silver - which is of more interest at this stage. And I also came out with about a 40 year LOM on that silver probable resource. Very rough calculations based on a 20 minute skim of the docs. Anyone care to validate or refute those numbers?