NEEDED: Looking for ATX MoBo tray.

I have been hunting everywhere for a ATX Mother Board tray, but cant find one. /ubbthreads/images/graemlins/frown.gif

I am building a computer case from scratch, and need the rear MoBo panal.
I dont really even need the tray the MoBo mounts on, I will be mounting it to plexiglass.

I need the back pannel.

Anyone know where I can find one?
I thought about cutting one out of an old case I have, but, that stuff is harder to cut than you would think. /ubbthreads/images/graemlins/frown.gif

This basically what i am looking for.
http://www.mountainmods.com/cgi-bin/product.pl?item=120MOTRAY

But DAMN that one is $$$$$$, as is all MountainMods stuff. Nice, but damn, thats crazy.

Thanks

~John