There are still suppliers open, but unlike the gcc arabs who will dole out money wherever their respective western consultants/gods suggest- we don’t have the open funds nor do we purchase on a whim or a simple tap on our insecurities.Seeing that the PAF leadership even walked away from the F-16s (after the US refused to back it with FMF) despite having the infrastructure for it, it seems that the funds have been allotted for other things, with emphasis on the JF-17 and the FGF. Besides scarcity of funds, I wonder how much of it also has to do with just being fed up with being a price-taker on the import market (not to mention grovelling repeatedly for loans and credit), and just closing the door on the issue once for all. While the cost issue won't go away with FGF, at least you have control over the spare parts, supply channel (e.g. deciding when to downsize or ramp-up production), etc.
The goal was even in the worst situation have 75 F-16s and 150 JF-17s +the PGs doing intercepts and soldiering on the most serviciable and competent mirage airframes.
What the PAF is doing now is what the PA is doing and the PN is doing, focusing on itself as a warfighting organism as a whole rather than piling on incompatible and dubiously ready systems in the East,or toys like the Arabs, or propogana like our western neighbor.
Interestingly, it is the Chinese who have now taken our lesson to heart and are doing just that... building a unified warfighting organization rather than multiple non specific confused systems.