Subfixer, I wanted to get back to you and thank you for your information. I am looking at the outboard profile starboard drawing from the BOGP of the USS Ranger circa 1978. I got these drawings from the Floating Drydock. The flight deck shows a dimension of 97 feet from baseline and the Nav.Bridge - level 08 shows 127 feet.
There is nothing called out for the hangar deck but your recollection agrees pretty well with what I measure at 60.5 feet. I arived at that number by scaling the distance from the flight deck to base line. On the drawing this distance scales an average of 6.25 inches. The hangar deck scales 3.9 inches. So I took 97/6.25 x X/3.9 and cross multiplied and X came out to 60.53 feet.
Regarding the gun sponsons, my brother served on the Independence CV-62 in 1960. He said the reasons they removed the 5 inch guns was that the wings of twin engine bomber the A-3 over hung so far they interfered.