Hey All,
  And modeling it would be a serious waste of time and resources.  An M-60A3 tank had approximately 10 hours of operating time - while constantly moving cross country.   At the idle, 50 times that long.  (you had to idle some of the time to recharge the batteries and keep the thermal sights cooled)
  I know there are dedicated GVers out there, but a 10 hour sortie?  I kind of doubt it.
Regards,