i hate to be repeatitive but guess what i have to...
* video you posted is of 2001 i.e. 12 years old
* the carousel dimensions were just that i.e. the original AZ but since 2005, it is made by HIT with slightly wider dimensions for which they developed solid state electronics, its not the original Norinco carousel. I have personally seen the carousel of Type-85III and Al Khalid, both have multiple differences.
* The point is, carousel is still there but vastly modified with tray and electronic systems developed inhouse with all relays removed.
* lastly, the last pic is an MBT 3000 which in itself is an MBT 2000 revamped, the Al Khalid project as it stands today has only external resemblance to it. From electronics to gun to ammo to BMS to tracks to LDS to LWS, all indigenous, optics French, NVD local (gun is based on KBA-3 and NOT original 2a46 design, the one is Alzarrar is a 2a46 M local clone for cure)
Go through this thread please for further details...
http://defenceforumindia.com/forum/pakistan/23364-al-khalid-mbt-2000-main-battle-tank-77.html