Dear Sirs:
If you go to huitong's website and open his page the page on the ZDK-03, you will find both the picture of the final, delivered model (in typical yellow primer) with the Pakistani Air Staff posing in front, AND if you click on the link, a picture of the initial prototype (painted white with light and dark blue stripes).
For me the key points are:
the prototype uses an earlier model of the Y-8, with four-bladed propellers vs the ZDK-03's six-bladed ones;
the ZDK-03's airframe is clearly the same or is similar to that of the KJ-200, however, it is also clear that the triple tail fins were first tested on the prototype and later used on the KJ-200 and the ZDK-03;
there is a APU in the lower left fairing of the prototype's landing gear similar to that of the KJ-2000 and KJ-200. It is not apparent from the picture whether there is one on the ZDK-30, although I suspect there is;
similar to the KJ-200 there are a series of blade antenna's on upper (dorsal) part of the fuselage running from the cockpit all the way to the lower edge of the radar antenna;
the KJ-200 and the ZDK-03 have nose-, chin-, tailfin-, tail- and wing-tip electronic fairings and which are not present on the prototype;
And lastly, if you look at the double-striped band across the center of the radar fairing, it is pointing front-to-back, in the ZDK-03 and side-to-side on the prototype - this seems to confirm that it does indeed rotate.
