plastic windows

Anyone know where i can get plastic windows for the camaro? or an 80s model firebird.

http://www.percyshp.com/producthomespeedglass.html

would you have any clue what kind of tool they use to take off that 1" so it would be the same as the factory windshield size? and if its hard?
thanks

"All of our glass is over sized by one inch all the way around in order to ensure a correct fit on all fiberglass and steal bodies. It
does need to be trimmed to final size but this is a very easy process that does not require any specialty tools. All of our windows
will have installation instructions that will talk you through this process. These instructions also cover tools you need, Blacking out
and using adhesives, as well as Fastening."

how would you put the rear electric defroster lines on?

I doubt anyone that is concerned with putting a plastic window in( drag car) is probably not to concerned with the defrost.

And just incase you didn't know, Speedglass windshields are not D.O.T certified and is illegal to use on the street. Not sure if any cares are not, but thought I would mention it.

One thing I would like to know is how do the windows mount? Do you have to make a frame for them? Or do they mount like the factory window and still retain the ability to roll the window up and down?