Sir: I beg to differ. we may be able to afford that, may be.
But for now the air wing is already such a complicated issue. We got factors like lift size, STOBAR vs CATOBAR, which in turn impact on available models/body structure/endurance, and most of all the operation commonality, not just between different decks/take-off, but also between deck- and shore-based squadrons.
I'm most concerned about the last point as it will ultimately affect the sortie rate. I believe everyone already noticed both take-off lines on Vicky & Vikrant will block the landing area. It's a disadvantage compared against Chinese CV (they won't have this issue). Nevertheless, CV-to-CV compairson is NOT my point here. It's simply about how much power projection we can do with these beasts, not to mention to make best of our extraordinary achievements.
Going for 2nd Vikrant is kind of double betting on STOBAR, and thus our choice on air wings - unless Navy got a very strategic thought about how to upgrade our STOBAR with EM/Steam catapult - a very unlikely scenario to me (even that happen, before MLU it could mean ~20 years operation window to be restricted by the dilemma I mentioned).
I admit I don't have answer, but simply bring up my concern here.