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		 First of all I would suggest using sheet aluminum... and something with like a 1/16" thickness that can be bent and cut easily but not flimsy.  You can cut this easily with almost anything, but a $80 band saw would work well...  I have one.  It would be easy to make with MINIMUM fab skills.. only thing that would be a pain is all the measuring and fitting. ... just tedious. 
 
And the metal you can get at any metal supplier... you just have to do a search on yahoo yellow pages.. took me a while to find one, and they typically sell in HUGE quantities, but the place I found gives me all their scraps if I want including stainless... and their scraps can be as large as 3x3'. 
		
	
		
		
		
		
		
	
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