Well there is a big difference between licensed manufacturing and indigenous design & manufacturing. I was referring to the later. I'm sure your naval shipyards are well equipped to license manufacture but probably lacks the capability in designing and building its own frigates,destroyers and missile boats. I believe the capability to master the stealth hull design and then manufacture them would in itself take ages to acquire.
I would like to bring Indian Naval design wing as a reference here, started with modest designs some of them inspired by British legacy, such as Leander class frigates, however now they are in a much stronger position in terms of expertise and are delivering some high quality ships as a proof of their class. The best example would be Shivalik class frigates and the yet to be inducted Kolkotta class destroyers.
Please note I don't doubt Pakistan's capability of Naval ship building, However I want to highlight that developing the capability to design and build stealth ships is not a capability developed over night. It takes years to reach that level and Pakistan is yet to cover more distance to be there. Hope you would agree !!
Ind-Pak friendship zindabad !!