I am not douting your ability at being able to make one but have you looked at one closely at one there is a lot of work that goes in to one of them and as stated above they would need approval, so you would need ten of them made and sent to FREA for testing then you will have to wait until October to find out if it got a proved is it worth it if you only want one or two just my thoughts on it, but if you can make them and they are good and get them a proved there mite a market for them.