I have read alot about doing a screw build here on this forum, and that is the route I am thinking works best for me. One question, though. Has anyone ever drilled the rear trunion rivet/ screw holes all the way through, and then installed grade 8 or better bolts with a nut? I seams like this would be a sure fire way to make sure the rear trunion never blew off due to bad welds, screws, what ever and would make the rear assembly very strong. Am I missing something here? The rear trunnion coming off in my face is my greatest fear concerning the build. Oh, BTW it  is an AMD-63.
Thanks,
Dean

Once you see how hard that rear trunion is and how tight and secure it is fitted with some loctite and tempered screws, you won't worry about that rear trunion breaking off anymore.

My rear trunnion holes do go all the way through.  I accidentally stripped out one of the forward holes. I got a longer bolt and put a nut on it.  Seems to be okay but I haven't tried it out.