Bribing the Pilot

Congratulations, you figured out that the new target area is right next to Vladivostok! After searching for airports in the area, you found one with a crop duster pilot who has admitted to being hired by FAMPO. Fortunately, he is a duplicitous character and is willing to give you the ALPV, but not for free!

He showed you the money that FAMPO gave him and was very upset that the stacks of money of two different denominations were different heights. He said he wanted the same number of bills for each denomination, but those FAMPO idiots gave him the same dollar amount in each denomination! (He must have some kind of one-two thing.) He is willing to give you the ALPV if you give him 600 of the higher denomination bills so that his stacks are exactly the same height.  He also said that you would then be paying the same amount that FAMPO paid him. Unfortunately, you only saw the lower denomination bills which were $3 Obama bills! Obviously, FAMPO is giving him counterfeit money but you still need to give him the higher denomination bills to make him happy and get the ALPV. What value should you get printed on the 600 higher-denomination bills?