Does anyyone know where i can get a motherboard tray. With the backplate <220 mm. ? I'm planning to build 2 x pc's into a desk.. nothing uber special , just modifing my current wooden desk, and dropping a square area 1370mm x 420mm x 220mm in area. covering in Prespex and fitting my 2 pcs in there. however i need an ATX tray, without the 'fan holes' etc above the graphic card slots, that i seem to find everywhere.