My vote would be for the Copper Roundhouse + stainless K24 w/ black Cerakote top cap. I like using the Roundhouse (along with other copper mods) as an antimicrobial copper-alloy touch surface. But given the prices you laid forth, the Ruby is the best deal of the bunch. If a Ruby, I would go full copper.
	
		
			
		
		
	
			
			
			
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