All Chinese Electronics esp Radars exported are always a different version than their own, however, they claim to have the same capability and design and principles. SSMs will be different nothing new in that.
Contract from Bombardier, Contract Integrator, Contract for Weapons and Sensors, Iron out Problems, Issues and Challenges, Integrate Hard points for AShM, Torpedoes....That’s practically half a decade of Negotiations and WPTA(Weapon Platform Testing Analysis) Cycle. Time is something which PN wants to shorten and this route is pratically extremely time consuming and prone to unde delays. PN is looking for a Jet Set Ready Platform which avoids PN the hassle and mitigates cost and time. Hava SOJ is a complex project but as far as Bombardier 6000 isn’t being used to Lob SOM it’s less challenging. Where as When you want to launch AsMs & Torpedoes from the Jet it’s an extremely challenging, time consuming and a capital intensive exercise. A venture for which Countries like Pakistan are averse to.
Investing for manufacturing isn’t an option as the system in question has already completed its major developmental cycles. Moreover, Economy of scale does not allow for such a venture to go ahead. However, Umkhonto-ER-IR is an option(Fair Chances). Aster 15 the best option still but much more costlier. If the Italians won’t compromise on Cost then you might see ER-IR here.