Does Anybody Make Custom Made Reflectors?

I have a canopy that I'd like to mount a 47" x 18" reflector so that I can spread out the lighting and add an additional two VHO bulbs. Does anybody know of a vendor who makes/cuts a reflector to these specs? I've found the length is not the issue, but the width is a problem (I've only been able to find a maximum 10" width).
 
You can buy two reflectors and trim them to match up and become one wide reflector.
 
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