It looks like you have about got it. The follower needs to be at a lesser angle (which means the feed lips need more bend, but if you get the bolt to clear it should work. If not, Gun Parts Corp. (www.gunpartscorp.com
) has repros, stock #153170, at about $40.
There are sites with takedown instructions, and a video on takedown here:
The guy in the video uses a screwdriver to push in the spring bushing; PLEASE use a non-marring brass or plastic tool. And PLEASE remove the grips before working on the gun; they are VERY fragile and one drop will destroy them.