Here is a deck plan for the full scale ship
Deck 1
Bridge
Deck 2
Dignitary staterooms (The Enterprise Incident), Pike's old quarters (?)
Deck 3
recreation room (Charlie X, Let That Be Your Last Battlefield)
Deck 4
crew quarters (implied... Ultimate Computer)
Deck 5
recreation room (Let That Be Your Last Battlefield)
Kirk's quarters (Journey To Babel, Mirror, Mirror)
crew quarters (Man Trap)
sickbay (Amok Time, Elaan of Troyius)
Deck 6
Briefing room (Return to Tomorrow, Day of the Dove)
guest quarters (Let That Be Your Last Battlefield)
Deck 7
main energizers (Doomsday Machine)
Deck 8
auxiliary control (I, Mudd)
Deck 9
Deck 10
Deck 11
Jefferies Tube (Journey To Babel)
Deck 12
Rand's quarters (Enemy Within)
Deck 13
Deck 14
Deck 15
Deck 16 (Engineering decks)
-A Deck
Hangar Deck observation gallery
Emergency Manual Monitor room
-B Deck
Hangar Deck
Main Engineering
Deck 17
Deck 18
Deck 19
Deck 20