It is premature to think that the deal to explore possibility of joint defence production will help in the acquisition of engines for the T129. Besides, Turkey and US will get past this spat in the coming few months and we will get the delivery of these choppers inshallah.
As for your view on Z-10, you are wrong on its its strengths unfortunately. Its neither fast nor maneuverable as both these variables are tied to an underpowered engine. As for stable, when the requirement is to be able to hover, which helicopter isn't? Don't see that as a "strength" to be espoused. Given that PA has already inducted a handful of Mi-35s, those are logically the only other helicopter that should be pursued. Z-10 will never see a day in active service in PA on its merits, unless there are massive kickbacks and corruption involved.
For the Thunderbolts, if you are referring to A-10s, then I am afraid you are living in some fairyland. And this is not just for the fact that US will never sell any to Pakistan, but the fact that you want PAF to be the sole operator of an American aircraft and that too of a non-multirole plane that has no room on a modern battlefield unless the side operating it has absolute air dominance (read not PAF vs IAF in any scenario).
