Pakistan can track almost anything in it's air space. Thanks to hard work by PAF on project Vision.
As for interception as far as I know FD2000 has been on the list since late late 90s or early 2000s but PAF put the money in project Vision and decided to indut SAMs afterwards. LY80 are being integrated next step will be FD2000/HQ9.
Bahi what is the point of building walls ?
GHQ k ird gird b walls khadi kardainge ?
Why not fast track induction of SAM systems and start research on Laser defence systems ?