P/C on xbox360

How much could i get this if i sell it.
Xbox 360+Hard Drive
2 Controllers
Microphone
Keyboard
cords
2 rechargeable batteries
Charge as you play charger

14 Games
COD 4
COD WAW
COD MW2
Xmen origins
halo 3
Battlefeild2: MC
Left 4 dead 2
Left 4 dead 1
assasins creed 2
GRAW 2
Smack Down V Raw 2008
Rainbow6 two
Guitar hero III Legends of rock+Guitar if wanted
Gears of war 2

Xbox live account that has 10th prestige 55 on cod4

thanks