Well Pakistan had option to buy few retiring destroyers in past and they missed out on it and no alternative came
I remember one times we had option to get British retiring Destroyers it was actually offered to Pakistan but for unknown reason we opted to not buy it
may be the sea going admirals thought the OHP program will offer them 5-8 OHP level ships and we all know nothing but 1 single ship came our way
I recall reading in news paper it was stated they thought the cost to maintain the yearly operation of the ship was above what the navy was willing to commit to and for that a fully worthy destroyer was just not inducted
Can't really add these in yet as they are not yet delivered or constructed or handed over