No, the bowling workload will break Kallis's back, and with that kind of batting and bowling imbalance winning would be hard, India would always have good batting but the bowling Kapil provides would eventually win them more games, I also don't have faith in Kallis averaging more than 47-48 in 80s, and at that point you're just sacificing winning for more pretty scores.
Yes in test, No in One Days, simply put, Andrew Flintoff is the greatest one day all rounder of all time and top 10 Cricketers in the format in general, Stokes in one days was very good but does not even approach him. In Tests, easily Stokes, bar the one year where his mental health imploded due to stress and the pandemic, Ben has been an excellent Cricketer since 2016, Flintoff does not compare.
Yes. Jadeja and Axar will maintain a similar level of home dominance, but Steyn would make them the true ATG side with two ATG away bowlers.
Yes, Miller was an exceptional bowler, no lesser than Lindwall in quality but simply bowled less thus had inferior output, as a bowler I think Miller was exceptional and probably the bowling equivalent of Steve Waugh or Allan Border, but he was also a very good near 40 averaging batter who could dominate outside wet pitches, he'd give the team more balance.
No, they do not have the batting resources outside home to capitalise on the advantage of having Waqar as your lead pacer away from home, almost all of them were home spin specialists.