Pakistan should buy everything Turkey has.. Currently Pakistan-Turkiye have warships and submarine deals pending plus Helicopters.. Not sure If I have seen tanks somewhere?`But 4x4 laser added armored Vs addition won't hurt either plus drones from TB2 to TB3 and you can add on top of that Turkish fighter and while you add it buy also Hisar the long range version. There is also laser guns and weaponry systems. You also need fully anti-chemical suits armor for foot-soldiers for the future doctrine of warfare in 2030-2040s.
There is no need for tank purchases tho just 4'4 armored pick ups, Helicopters, jets, Defense systems, laser technology, armored suits for soldiers plus Warships and submarines..
All this purchases are excessive and Pakistan is covered for the time being very well in every place but I am the aggressive type of planner and buyer and I also think staying ahead is better then catching up. Pakistan should already modernize it's army to make it ready for 2030s long before the 2030s come and again repeat the same feat in 2040 stay atleast 10 steps ahead all the time