It's not pointless for me, and who the hell was asking you?
I've converted 2 semi autos myself, but it's not something I enjoy doing, and I no longer have the use of a machine shop to do it in. It never hurts to ask.
Since the ATF allows for front fire now, I have considered buying a few of the commercial 9mmPAK replicas, and I probably will. Zoraki makes select fire pistols that have a decent look to them.
Over the years I have picked up a few already converted guns from stembridge and other houses and used them in various productions. Not the $7000 hero guns used by Matt Damon and such from the propstore. But when they were selling off stock for decent prices.