I’m gonna say this as someone who used to fight muay thai in my youth and who is still a lot younger than Tyson…
You lose speed with age and not a small amount.
Tyson looks in absolutely phenomenal shape for his age and there is no doubting his fight IQ and I really hope he wins but Paul is also in superb condition and looks strong and fit. I’m predicting a close fight, possibly with Tyson gassing. That would be my tactic if I were Paul.
Ireland did it in 2005. I don’t remember the cost being an issue at the time. I mean obviously it cost some non trivial amount but I don’t recall any Hullabaloo about it. Wikipedia page doesn’t mention the cost.