I didn't take pictures of the shifter, but I did find this video before I attempted to take it apart.
It was a pretty simple procedure, and I made sure to put it back together the way it came apart. Having said that, it still doesn't want to engage reverse. I noticed there is a crack in the metal of the housing. I'm not sure that it would be effecting its function or not. I'll take a picture of that.
As for the tranny itself, this morning I also went through the procedure that you explained. I started out with the rear tires raised, and in neutral. As I went through the levers, I found that the 1-2 and 3-4 levers shift forward easily, and back into neutral easily. However, when I try to turn them backwards, I need to turn the driveshaft slightly in order to get them to turn into gear. But they do turn easily then.
Reverse seems to turn okay. It's a little stiff, but not bad.
