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			#1  
			
			
			
			
			
		 
		
		
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			 Eggs crate is flimsy a gets brittle and breaks easily after awhile. I would go with pvc and milk crates. After all you are putting rocks on it. 
		
	
		
		
		
		
		
	
		
		
	
	
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			#2  
			
			
			
			
			
		 
		
		
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			 milk crates thats a good idea. 
		
	
		
		
		
		
		
	
		
		
	
	
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