Couple pf points
1. F16 are available if PAK/Paf is willing to pay for them at full price
2. 1 sqn of 16 block 2 JF with weapons costed international customer $560 M, PAf will pay far less
3. 8 F16s cost was 699M or least round it $700 M
4. Thus 16 F16 sqn would cost 1.4B
5. 2 JF sqns for the cost of 1 F16 sqn
6. Reality is JF sqn was first international sale so included training, plus other support elements which may not be required for subsequent sales (for PAF)
7. it is safe to assume 1 f16 sqn costs more than 2 JF -17 sqns
PAF will prefer to buy F16 only if it make sense i,e subsidized or may opt for used ones just to add more F16s and convert some for spares/reserves in future