Lucky,
Are you really saying that these parts are ok for re-use?!
The angle on the drive dog may make it easier for it to slip into gear but it also makes it easy to pop out ... which is likely the problem.
You can have your transmission "back cut" which basically means to cut the drive dogs at an angle such that the pressure driving the drive dog (and thus the gear) actually holds them together. Cycle X does this and some other places as well. I'm not sure if they handle F transmissions though. You could ask.
I'm not sure if that shift fork can be salvaged. It really looks like it probably should just be replaced but that could be a tough part to track down. You could possibly have it hard welded and re-machined but I think these are a cast part so that may not be possible either.
IW
Are these parts out of a transmission that was working?
When shiftng forks are bad or bent they are colored by the heat and actually turn blue. The tips get ground down on the sides.
When people keep their foot pressed against the lever it can heat the shifting fork up, and when they force the bike into gear because the bike is not rolling and they just keep kicking the lever the forks can get bent.
Shifting forks just have to nudge the gear sideways.
What really matters is the tips of the fork.
Also the fork can get bent by idiots with big boots and no brains.
The
tip is what actually pushes against the gear.
In the photo above the tip portion is not even shown.