The main difference between the civil and military systems would be the use of primary radar - expensive to install - and secondary radar. Whilst Civil ATC can see all transponding aircraft, military need primary to identify non-transponders. The price appears to be way OTT for a civil or mil system. Question - with eight aircraft in their air force, do they really need this expensive toy? I have seen this sort of thing happen in other countries where they are conned into buying an unnecessarily complicated system and then spend ten years paying for it.