Oceanlord:
The Revell kit depicts the Great Eastern fitted as a cable-layer (one of the funnels removed and a trough for the cable running to the stern plus cable reels over the bow and stern, so the kit will need some work if you want to model her as she appeared in her days a passenger vessel. There are a couple of completed versions on display at http://www.modelshipgallery.com.
James Dugan's "The Great Iron Ship," published in 1953 is still considered a pretty good reference source and is usally available from used book sellers for less than $15.