1 PAF has plan to equip 1 missile with two drop tanks also. although it will reduce the free will to fire at target because only one missile will be available but it may provide some extra range to jet. Moreover if really needed then jets may compromise their fuel and go beyond the combat range IF an IFR is promise in mid way while they are returning.
2 We need to add the range of C802 and CM400 as well. If we assume it as ~200KM for both missiles then PAF jets will release them while remaining 100KM+ away at least.
3 P3 Orions could also provide a long range attack with Harpoons but they will definitely need some air cover to mitigate the interception risk. But note that due to the much longer range/loiter time of P3Cs, PN could use them from unexpected sides of Indian Carriers while using PAF jets from the shortest available distances. These jets could provide air cover, decoy, or added attack layer.
4 PN/PAF Naval arm needs longer range jets to counter this threat ultimately. I am not sure how much J10 could help(If inducted and used in naval role.)
5 EEZ has also increased the area of responsibility for PAF and PN so an artificial island for PAF and PN Defense and Offense (similar to Chinese ) could also help PAF. Although its expensive to make and maintain but concerning the future CPEC trade and its benefits, this could be a feasible option..