I understand lasers take tons of maintenance. if they were making tens of thousands a month it may be worth it, and we know they always run out! plasma would be the most cost effective, water cutters are expensive also 100K; a good plasma CNC may be the way it goes. Thinking now, a die for a punch is also expensive, and the thickness on them blanks you'd need a big punch! I think we need a ninja to find out!