I did 2 of my own. Its very easy, just take your time. Just make sure you shoot yours before you convert it so that if it doesn't work you can send it in and get warranty work done to it. There is a place in Ohio that does the warranty work now.
I haven't had any issues with my shotgun. I've even made some steel mags for them. They're not the prettiest but the work. They newest ones look like the alum one in my video. I still need to get a different butt stock.