Starting nut removal

["Don Anglesey" <Don@anglesey.us>]

I am getting ready to remove starting nut, does anyone know off hand
what size wrench I need and any helpful tips on removal.  Isn't the lock
tab bent onto one of the sides of the nut, I do not see any lock tab.  I
plan on fixing a stripped thread, replacing the oil seal and harmonic
balancer.  Any ideas on the best way to tackle this job while engine is
in car?
Don
57' BN4