The one at Lohore Fortress is CL-13B 1670 while the one near Jinnah Hall is 1728.
The F-6 at Lawrence road is 1610 and it is in my F-6 list as 'China Chowk", where Lawrance road meets with Shahrah-Aiwan-e-Sanat-o-Tijarat road. On that latter road, just a couple of hundreds of yards away to the Northeast is another F-6 in the courtyard of the Children's Library; that is FT-6 10118.
All are gone, from that area.
I presume a lot are preserved now.
Re the discussion about making drones of them: the Chinese have actually instated several regiments with F-6 drones. Their exact role is unsure, most observers think they are meant as unmanned bombs rather than aerial targets (like the USA use). But, such a program is big and costly and probably not worthwile for Pakistan.
Another, more straightforward and logical role for them could be as decoys. When you litter all the bases with old aircraft on/near the ramps and dispersals, any aggressor would have to look twice and may bomb those unused aircraft instad of the real ones...