Here's an unfinished guide to stupid problems and stuff:
Currency
I've picked through the bullstuff currencies you use everyday and I've came up with a basic universal currency and it should work. If you don't agree, then tell me what to correct.

is the "coins" of this currency.
Therefore:

= 2 stacks of coal

= 1 stack of iron
Diamond doesn't count as currency, it's used for tools.
But you say "Miners get more money than the SUPREME ADMINSTRATORS OF MY SERVER"
This is where the
MATERIAL DOUBLE REACH-AROUND comes in.

Miners must give half of ores and building material to the Government and Builders every time they mine.
Which is also called
taxes