Need Help with Layout in Grow Room, Please.

Ok, so I have total 4x4 trays (4) total that I plan on laying out horizontally in my grow room with a 1000 watt light covering the area with Magnum XXL 8 inch Lights with a Metal Halide Horliux Bulb. My question is, would is this setup work? I do plan on having maybe 15 plants per tray? Would that be possible? Is there anything I can improve upon?

Gonna have to do some re-engineering bro,I would feel bad putting 3 plants per tray.Have ya ever given 4-6' PVC a try?Cheap,,lots of plants in a small area.Search the site for PVC Stadium Grow's.Awesome Shiznit.