I was searching if any fighter/trainer aircraft design and developed by Pakistan to offer US.... but I found only below: I guess your can try with that might you will succeed.
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ON Topic- HAL should stick to complete orders from IAF then only talk for export to any country. They need to stick on timeline for HAL Tejas MK1a because it is more then enough to counter any threat from west with Astra missile 2 - 160KM.
Rafale with Meteor and Su 30 MKI with Astra 2- 160 KM/ Astra 3 - 350 KM will be good to deal with any threat from east in the future.