If there is a sale to BD, the platform will be customized platform like J-7BG which was based on J-7PG but customized for BD requirement. Secondly it would also be important that BD goes for which configuration as different price ranges were qouted by one insider for different roles i.e. pure airsuperiority to full multirole. Thirdly, there will be some understanding whether to use the aircraft in certain cases like Pakistan did not use F-16s in excercises with PLAAF. similarly, PAF may not use its frontline Chinese platforms (may be FC-20) in NATO held excercises. Its an understanding, else there wont be any issues on either side even if these platforms are used in joint excercises with IAF, capabilities will be different