Well, if you want a true 5th generation fighter you need:
1. New engine with a lot of power! For supercruise, even the Russian dun have this ability yet, how you suppose where the Indian going to have such technology? Even money can buy every thing but what good if nothing for you to buy?
2. LCA and MCA both in different generation fighter, that mean their superstructure are different! India need to do everthing from the basic, if not, what you get will be only another "bigger" 4th generation fighter.
agree?