The last quote is for the Reaper, a new version of the Predator that costs 4x as much. $16m is much cheaper than a fighter jet, but when you start deploying them in swarms of 20:1 ratios, the numbers don't work.
You're flailing around moving the goalposts at this point. The Predator/Reaper drones are more generalist platforms than you'd need for a disposable drone built around an air to air missile.
You cannot just blindly put missiles on a drone without any radars or sensors. The current Predator platform should be how much it would cost...minimum.
