Apologies. I tried making sense of where the conversation was headed. Hence I followed.
There is a fundamental problem with your entire narrative.
The only credible information you have about KJ-500 is the following;
1) Chinese are using it.
2) It is based on Y-9
3) It comes with IFR probe.
4) It covers 360 degrees.
Otherwise, there is absolutely no information on the actual capability of the aircraft (or even close) and I can see why. It is fairly new, which also means untested and hence unreliable for an Air Force like Pakistan that cannot afford risky investments. This is exactly one of the reasons why Pakistan went with Erieye due to variety reasons which did include SAAB's experience with quality defense products.
Hence this huge hue and cry about KJ-500 is nothing but a fanboy attitude you earlier spoke of.
I'm afraid it doesn't work this way. SAAB 2000 fully supports JF-17 and your proposal is nothing but a costly nightmare. JF-17s are/will be based at Kamra, Peshawar, Sargodha, Shorkot (soon), and Mianwali (soon), Quetta and Masroor.
You are proposing a mix of SAAB 2000s and KJ-500's on bases to support different aircraft? How will training look like if we restrict SAAB's to F-16s and thunders to JF-17s? What happens when JF-17s and F-16s fly in formation? Who controls what? How will our mission controllers bring out their best training and fully understand who needs to 'look' where and 'shoot' where? What will IAF deduce when they see a KJ-500 flying alongside borders? That only JF-17s will be scrambling?
What you're proposing also doesn't make sense because;
1) Kills fleet commonality further (Y-8, Y-9, SAAB 2000)
2) Does not bring any capability breakthrough over Erieye.
3) Renders ZDK-03's redundant. Unless, ZDK-03's can be upgraded to the newer radar, it's a different story altogether and it might as well become a reality.