>>7705795see if your local Home Depot or Lowes cuts acrylic/lexan sheets. They'll cut it to spec and even drill the holes for you.
Hinges, frames, pegs, and everything else you need can be found in these stores.
There's various ways of getting shit made. I want to get around to doing something like this for my audio equipment.
Here's a good guide if you're doing everything yourself.
http://www.wardsweb.org/audio/rack.html 