Mate will F-35C will be bad option, i am saying in terms US famous for playing Sanction sanction..........
But i think US India relationship has reached to such a level where we should start looking for F-35c as this will give unparalleled advantage in Indian Ocean. Rest of 5th Gen fighter like AMCA and PAK-FA are no go as you have provided explanation on it.
It's not about sanctions only, but about operational limitations US aircrafts mean for our forces!
The F35 would come with an US "export" AESA, avionics and weapon pack that we neither can modify nor customize. We know that US arms will come with end user monitoring restictions, we know that they try to demand how their arms and techs will be used, we know that the F35 can be maintained only at specific locations (Japan or Italy) and that upgrade of systems will be dependent on US government approval, we know that the "export" weapon pack the US allows India, might be better than what they allow Pakistan, but still is far inferior to what we can have from Europeans, let alone what FGFA offers (Nirbhay, Brahmos M, Kh58, Kh35) and these restrictions wouldn't be limited to the fighters only!
The E-2D coupled with a catapult system is surely the best choice for carrier based long range AWACS capability as a platform, but it's an US radar system, that comes with no possibility to modify or upgrade it as we want, even if we have better systems available.
All this makes IN operationally completely dependent on the US, if they go for F35 / F18SH + E-2D, if they let themselfs blind by getting CATOBAR carriers. Catapults are important for our future carrier, but IN must be able to remain independent and not just to divert the dependance on Russians today, to dependance on the US in future. If they go for US catapults, they have to focus on getting independent aircrafts as alternatives, be it N-FGFA, or an AMCA that is developed for catapult operations (which DRDO is completely ignoring at the moment) and ideally an AWACS with a DRDO radar.