I'm sorry but does no-one face any bowlers with genuine pace who bowl aggressively anymore?
I can bench my own weight, so I am no slouch, but if I tried to hook 80mph with one of those, it would be into me before I got it out of the backlift!
I have a few bats at 2lb13oz but any heavier and I would be in trouble... or am I on my own here?

As Fattus says, comedy value - great. Adding anything to the glorious game of cricket? *Insert Family Fortunes wrong answer sound here*
FYI, MS Dhoni, Robin Uttuapa
et al, spend significant time in the gym coupled with power hitting.
If you speak to/watch the England team, they spend a lot more time on flexibility and core stability as well as endurance training.
I would argue this has a bigger effect on hitting 'prowess' than the size of ones bat.