My retirement strategy isn't just "an ounce per month" - consider it the foundations. Entering retirement with 300oz of gold puts one in a pretty strong position should other income-producing assets fail, or normal asset value cycles change creating opportunities during those 25 years of living in a small drinking village with a fishing problem.
A few ounces. Gold and silver are the same thing though, so better to stack silver as it is more undervalued.