Kethane or other resource exchange MOD idea

[Major Gene]

Anyone thinking of a MOD where users start with a certain level of Ker-Bills for building craft and modules for the use of mining and returning resources to kerbin. Those resources can then be sold on the market for funds to purchase items for follow on missions. This will add a great deal of difficulty and creative thinking of how best to efficiently build spacecraft and an efficient way to gather and deliver resources to market.

[Shammyofwar]

Try this https://spacedock.info/mod/3586/Galactic Trading