Hello everyone!
Hexus_One's tradeshop will trade ANYTHING that we have available at A.R.C.
Did I say ANYTHING? I got that wrong, sorry.
ANYTHING that A.R.C. has too much of MAY be sold, depending on whether A.R.C. decides to go on with it's tree farm plantation, or whether or not we decide to push our storage carts into that lava pit.
Anyways, any item or block may be used as currency, it's value calculated by:
Fastest possible time taken to mine it * Blast resistance + 1 for every craft/smelt/block placed/block dug needed to make it.
Examples coming soon.