Outer Limits 4x4 Board

So I'm after the window behind the seats, but i want it to slide open so i can get in to esky on the tray and my trusty old dog can poke he's head in and say g-day.
Are these made by a company or has any one got a direction to point me in.
Pics of custome made ones would help heaps,
Cheers

there was a bloke on here a while back that got one made down in vic he done a wagon cut down i think it cost him around 250-300 if i remember right just do a search

cheers

Try a ute canopy place. Most of those have a sliding front window in them.