Hello, my first post!

I'm planning a system which I need 2 non-touch screens to be mounted in the car.
The kind of specs I need are,
VGA & Component (red, white & yellow connections?!)
Phono audio output
7 - 8" widescreen
low profile housing with few external buttons.
Cheap-ish! around £70 or $140 each.

Thanks in advance!