What are you looking for in used Cobras or new Augusta's or in the Z's? Are you trying to buy a Lamborhini so you can take your girlfriend out in a sun dress sitting on the front seat or are you looking for a reliable helicopter with good firepower, newer avionics and reliability with affordable cost? If the answer is the later, than both, Turkish and Z's would be your answer for a country like Pakistan. The Lamborghini (Apaches and super Cobras), is not really affordable to you in numbers. May be in the next ten years when the economy grows.
But, the Z's can be obtained, test driven for free, modified per the needs, they already carry a very good payload (rockets, 8 anti-tank and 2 AAMs), and have a new generation design and avionics, add the price tag (super cheap for Pakistan) and you can NOT beat this. Add your leverage on the Chinese and the ability to start to get TOT and local limited manufacturing and assembly, and bring thousands of jobs to Pakistan, and advance your industry, it doesn't even require to thing twice. You can do what you did to JFT, add Western stuff too and sell it to others and make $$. Augusta and others won't let you do it. Plus getting local assembly, you could bring leaps and bounds worth of change in your helicopter manufacturing industry and you can produce a civilian version of this helicopter with modifications to the airframe. This is a strategic play and you should utilize this opportunity.