might be cheaper to have one fabricated at a metal shop ?

 

Hard Steal (Vancouver)
http://www.hardsteal.com/


Compu-Secure (Vancouver)
http://www.compu-secure.com/


ParamountComputers (North Vancouver)
http://www.paramountcomputersltd.com/security.htm


Make Your Mark (Kelowna)
http://www.makeyourmark.net/


There are a few other companies who make security enclosures for computers but I can't remember their names. Hope this helps!