Something like this
		
		
	
	
		
	
you could secure it from the inside with screws, then putty and LR the screws over. Everything inside and out can be sealed with LR.
				
			you could secure it from the inside with screws, then putty and LR the screws over. Everything inside and out can be sealed with LR.
	
	
	
	
	
	
	