Beware of some custom installation fee's
Hi Maxy
I'm a custom installer and I can tell you that you are being drastically over charged for a service like that. My last small installation job I did came to about $2400 which included all in-wall 14 gauge speaker wire, Cat5e, RG6 Coax, installing & terminating wallplates, Plasma mount, Speaker Mounts, Harmony 880 remote & Full TV / Stereo setup.
Labour was charged at $45 a hour.
You shouldn't have to break the bank to get a nice custom setup.