As the recent events prove, a conflict with Pak will be a short sharp one. With stealth, PAF can probably accomplish what they couldn't do this time, i.e. to penetrate our air space and either attack our military sites and cities or cause significant damage to IAF. All this assuming the stealth actually works and our AD/CAP cannot intercept them. I wouldn't want to find this out under battle conditions though.
Money is not an object for Pak. Either they will finance it through IMF or get it for free from PRC in the guise of some geopolitical strategic game.
No stealth aircraft has penetrated multi-layed top end air defence in history so far - so whether a stealth aircraft CAN do that - is a matter of theory and claim than reality.
And there is a good reason why this theory hasnt been tested - even by China where they could easily fly their J-20 agains SoKo or our air defence.
This is because, stealth planes are NOT invisible to radar. They are practically invisible to high frequency x-band radar. Those are the ones air defence systems + combat planes +missiles use for radar.
But always remember, stealth, over the ENTIRE EM spectrum, is a case of ' you rob peter to pay paul' : stealth aircrafts ARE extremely visible to low resolution weather radars
Yes, weather radars suck in pin-point accuracy but hey....you never know what weird thing tech people can do, mating a weather radar to data filtration devices to a SAM battery- maybe they CAN shoot you down over their air-space by doing this - so why risk this, if you dont have to ?
Besides, i would be surprised if China trusts pakistan with more tech - last time Pakistan shat the bed with far superior tech to India was in 1971 - where PNS ghazi was supposed to be cutting edge US tech and their sherman tanks were faaaaaaaaaaaaaar better than our T-50s. But we schooled them.
And ever since, Pakis havent gotten a single high tech cutting edge thing from USA - even the F16s they got are 15 year old block A/B crap.
Why ?
Because once you shit the bed and lose with what was supposed to be unkillable weapon, your supplier isnt ever gonna trust your competency and would always err on side of caution to protect THEIR hardware reputation.