SSSETOWTF:
Boeing will tell you that an F-18E is available for some laughingly low price like $50m, but by the time you've added in the engines and all the bolt-ons that you really need to be able to operate it, + the 15% tax for an FMS, all of a sudden I believe the price balloons to something around 3/4 the cost of an F-35. But personally I treat any and all figures associated with procurement with sack loads of salt. It's really all about the industrial offsets and the sustainment costs in my opinion - the sticker price is the least of your worries.
SS - Reference please. How is the contract written. If you want complete cost numbers I suspect all you have to do is ask and write the contract the way you want it.
Also - see reduced signature Hornet described in the video.