You would have to look at the blueprints for each converted boats no two where the same.Though it would make sense if the early GUPPY versions has less ideal set ups.
The blueprints for most every ship ever to have served with the US Navy are available to the public and you can get them I just honestly am not sure how.Perhaps the US Naval Institute Press maybe ask a librarian.
In the mean time check out this site it has all of the Submarine operation manuals very neat stuff here ever wonder how the air conditioning worked? Or how the diesels worked and how to maintain them? Or how to maintain the 40mm Bofors? these manuals will tell you.
Click on the "Fleet Type Submarine Series" and then click on any of the 12 manuals.I have read many of them I work in refrigeration and was very curious how the A/C and refrigeration systems worked so I found that manual pretty interesting.Interesting thing is that our modern military manuals are written in about the same manner.
http://www.hnsa.org/doc/index.htm#ss