I need to take the stock off my Belgian OU for some stock work. It's a 1942 "FAUL" mfg. gun and I have the grip tang screws out and trigger guard off, but unsure what comes next. The screw you see in the first photo was hidden by the trigger guard, and when it's unscrewed it raises the tang behind the safety as it unscrews from the top tang. Does the screw under the top lever in the second photo need to come out? Do I need to do anything with the little locking screws on the sides of the action in the third photo? Any help would be greatly appreciated.--Dave