AMCA is going to be a reality only by mid-2030s. We need something proven operational before 2030. And the Su-57 is cheap. The current version was sold at $36M apiece, a modernised version should cost no more than $50-60M, ie similar in price to the MWF. 40 jets with infrastructure, weapons, training and spares should cost no more than $5B. And this is all the way in 2025-30, when we would be a whole lot richer.
Doesn't make sense. ToT is only production ToT, it will be of no use in developing AMCA. And ToT comes when you buy 100+ jets at once. ToT isn't what you think it is. It's of no use in an R&D program.
Rather cooperation on AMCA can come in through offsets upon buying those 40 Su-57s. It will be an option, although it will be totally unnecessary.
Naturally, the Rafales are needed for other purposes, but the cost of integrating and operationalising Derby ER on MKI is not expensive.
We had experience integrating the Derby on LCA, could have done the same thing on MKI as well.
French cooperation with Pakistan died after the PA killed French engineers due to the non-payment of bribes.
Swordfish is a surveillance radar, it won't provide fire control. Only the S-400's FCR can provide fire control.
But the S-400 operator will have data from multiple radars, not just his own.