I am looking for the size on the plexiglass that slides forward on the top of the campionway. It seems that are some slideways where the plexiglass slides forward into a fiberglass hatch and that whole assembly lifts up/forward to let more air into the cabin. I am trying to figure how thick the orginal plexigalss was and how thick/long/wide the "slide guides" that attached to the plexiglass. I could do some jerry rigging, but wanted to do one thing right on getting the boat back in proper order. I have now confused everyone?