Juud,
You're making me think here...
777 3-class: 40 in Club- 5 crew in total (including CM and 1 Purser) - 2 dedicated galleys. 216 in Traveller/24 in Traveller+ - 5 crew in total (incl 1 Purser) - 1 galley in rear of the aircraft.
777 4-class: 14 in First - 3 crew - one galley. 48 in Club - 4 crew (incl CM and Purser) - one galley. 40 in Traveller+, 124 (?) Traveller - 4 crew (incl 1 Purser) - one galley.
Been a while since I was on 4 class, whence hazy on amount of seats in wt, sorry.
Gg