Hi lovely build and great to see you cracking on  
Re bin number I used a guy on eBay who stamped it on a piece of flat bar then I seam welded it to the chassis 
Will see if I can dig his details out but it's been a while  or any local engineering works should be able to stamp it 
		
	
		
		
		
		
			
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				remember we are not mad just creatively insane
			 
		
		
		
		
	
		
		
	
	
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