Idea is good but not feasible.
Mirage is still a potent jet and still part of french air force.Any such move would have resulted in leak of some sensitive french tech.
We should primarily focus on Tejas and rafales for next 10-15 years.
_________________________________________
Lca mk1a with elta 2052 + derby ER and unified ew suite will trump over mirage in air to air fight.
It only lacks in range and payload. So it will have air to air refuel. And mwf is coming.
Like I said before against Pakistan lca mk1a can take down all there current jets including f16 which don't have aesa so mk1a will see f16 first and shoot first with derby ER outranging aim120c5 (even astra will outrange it). Aesa based ew of mk1a will also triumph f16 s older pesa setup.
Jf17 will fare even poorer with Chinese kit. Porky couldn't afford Italian kit and are now regretting it.
Rest all they have is 50-60 year old mirage3-5 and f7 all good targets for shooting practice.
Porky need to upgrade their f16 with aesa and 120d if they want to have any kind of opposition to complete superiority of IAF. But I doubt USA will release them 120d anytime soon.