I've got a parked Global receiver, new trunnion already rivetted in, it's a 1.6mm one, with all the underfolder cuts already done. All you'd need to do is narrow your underfold trunnion and rivet it in.
I've got a new in bag Bulgarian Underfold stock, and polish cast underfold trunnion.
200 on the rec'r.
160 on the stock set.