Since you will be wasting a lot of valuable resources without really mining and maintaining the network, this experiment will also become pointless and somewhat disastrous.  You're attempting to obtain some money in the interim, but it would be safer to focus all of your energy on just locating the next block.  "The tale malevolent operator" is what I refer to this as.  Someone is deceiving you to pay for a "new bitcoin" or locate a key.  You are putting in a lot of work with little assurance of success.  Are you certain that you will find a balance even if you receive a used key?