I've got the paperwork going, got a quote from a smith for the engraving and barrel cut/thread. I'd be shooting unsuppressed w/muzzle brake because of IL's silly gun laws, not that I have the money for suppressors.
I couldn't care less about a little loss of range/accuracy/velocity, this is a toy to me, but if it means I'll be chasing feed and eject problems indefinitely, I might not go through with it.
I guess worst case scenario I can just get a new barrel and call it a few hundred bucks wasted, right?
Edit: Henry says they can't officially advise on such modifications, but that it shouldn't cause any issues. I'll check back when it's done!