Numerically challenged etc

G’day - I knew I could rely on you lot; it is really very
simple when you use Ganoksin’s Metal Calculator. Why didn’t I
think of using that? Piece of cream cake! So thanks to everyone
who replied - seems I need 16 - 18 grams of 14k gold.
(depending on how much scrap I make in the process) Cheers now,

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At sunny Nelson NZ