I haven't spelled out which exact units go where, but you might find this helpful as to what the USN looked like in October 1941 in OTL, and I will be using it as a reference to figure out deploymentsLoving this so far! I do have one question though: Is the Ranger going to the Atlantic or is it remaining in the Pacific? I ask because I didn't see any mention of it, and in OTL it was moved to the Atlantic because it was too slow and couldn't keep up with the other carriers.
but yes, the Ranger will remain in the Atlantic for the reasons you remarked on
assume the Battleforce (listed in the link below) is for the most part heading to the Atlantic, less its carriers (Lexington, Saratoga and Enterprise)
US Navy, October 1, 1941
Introduction to the US Navy on the eve of American entry into World War II.
www.fleetorganization.com