pls evaluate my profile

[winner's attitude]

1) Indian Male - 31- Under grads - Business Management ( non IT and non Engineer )
2) Undergrads - Bachelors in Business Admin - First class - among top 10% students
3) A few more achievements with extra ordinary scholarship at national level during undergrads.
4) Experience - nine years of experience in Financial Services
Functionally - Business Development, Retail
Excellent exposure in terms of leadership, have been leading and managing people for the last seven years now

Career progression == trainee TO sr. manager

Now, here come the weaknesses too

1) No international work exposure because my job doesn't demand it all
2) Have already reached an age of 31

Now comes the question Why MBA ?

Want to get into consulting, so my focus would be sales consulting, marketing and strategy.

I have been preparing for GMAT and have been consistently scoring 600-640, but am afraid that this score won't help me in reaching anywhere so am still giving some more time to reach up to 680-700 at least or 700+.

My target schools are

INSEAD
LBS
Oxford
Cambridge
IE

I am sure that i appear for gmat right now i would score around 650 , so should i appear for gmat or should i make it sure that i reach to a level of 700

what should be an ideal score for such profile with higher work experience like mine ? I want to ensure that my profile doesn't fall behind just because of GMAT score , so what would be the ideal score for above mentioned B-schools and given my profile.

How much does an age of 31 affect?

I understand a few aspects of my questions are very relative, but would be obliged it you can just give your individual comments on the basis of your experience till date

Thanks very much for evaluating my profile