PC bronze zaishen coins

I know they can't be traded, but after getting enough, they can be traded into silver, then gold coins- which can then be traded into valued items like the heavy equipment pack. Roughly how much does a bronze zaishen coin value?

If you want count in that way, it's simple to tell. The max profit you can get from those Z-coins is to trade 15 gold coins for a heavy equip pack which could be sold at 17-22e. Lets take the mid price, say, 20e, so here we go:

15 gold coins = 20e = 7,500 copper coins

if we value ectos at 6.5k each, then 7,500 copper coins = 130,000g that means 1 copper coin= 17.3333g....

Hope that helps!