It would be good to see the sights back in some form of production. However you must remember that the receiver also needs to be milled out to accept the sight. This isn't an impossible task, just needs the right equipment and setup. Up until quite recently the Harlan Satrang at Triple River gunsmithing (used by CZ USA for their custom shop) would mill the receiver and supply the sight parts for around US$300. Since his passing, I don't know if anyone acquired his jigs and drawings.