so I talked to the dealer... apparently the site is wrong.  There are two buckets - a GP 72 inch one yard bucket (presumably the one you have) and an 84" light duty/snow bucket that is ~2 yards.  
Since the v519 is 82 inches across the tires, I'm leaning toward a heavy duty 84 inch dirt bucket with teeth. It is about 3/4 of a yard, but is wide enough to cover the wheels. Do you think this is a good compromise? Or should I go with the higher volume but narrower 72 in bucket, like you have?
	
		
			
		
		
	
				
			Since the v519 is 82 inches across the tires, I'm leaning toward a heavy duty 84 inch dirt bucket with teeth. It is about 3/4 of a yard, but is wide enough to cover the wheels. Do you think this is a good compromise? Or should I go with the higher volume but narrower 72 in bucket, like you have?