These contracts are easily exploitable. Suppose it wants you to take 3000 units of ore from Eve to kerbin orbit. Here's what you do: Send an ISRU to eve with some drills and a large orre tank (or even a small one). Mine the 3000 units (if you have a small tank, repeatedly jettison), it will tick off one condition from the contract. At the same time, mine 3000 units on minmus. (optional) Next, bring your 3000 units from minmus to Kerbin orbit, receive the funds and complete the contract -or- laun