Questions on set of 12

It seems there are 12 in the set in each metal: Copper, Brass, Aluminum.

Does anyone know the mint that struck these?

Does anyone know then mintage.

As the guy behind Blue Waters Mint, I'd love to know, especially a mint willing to do small coins economically. Quotes I'm getting are $4 to $6 a coin. I've seen these for sale for $1 to $1.50 each or $12 to $18 for a set meaning the dies, metal and strike charges are in the $0.25 to $0.50 per coin range.

If you can make the stuff (dies, planchets, maybe even the minting press) yourself only the materials are what costs you resulting in relative small unit prices. But also the set prices now don't have to be the original prices. Many collector objects lose value at every sale/resell point.

I usually like to be in 3rd or 4th position when buying modern NCLT where an object that was sold initially for ~100€ can usually be bought for 25-35€.

I do not have the tools. I hire mints to make my coins.

I insist on being affordable. I would want my retail price at not more than $5 on a very small coin. 

Back to the subject: does anyone know the mint who handled the Easter Island 14 mm. coins? Perhaps even aa mint that might be responsible?