Too much khayali pulao...
Pakistan has not officially shown any interest in Turkish fighter project, and even if they did, they don't have many to invest in it. There 1st priorty is to replace aging F7 and older mirage. 150 of the older planes will have to be replaced by 2020.
Most of the budgey money will be spend in building JF-17 block 2 and R&D on block 3/4.
Some money will be used to acquire older F-16s and MLU, other will be spent to acquire small number of (18 to 36) true 4.5 generation fighter, possibly SU-35 with French tech.