This is starting to become confusing so lets break it down to more managable steps. Forget the camshaft and it's mark for the time being. Rotate the crankshaft to the position that you see or feel the timing vee in the timing port or window on your injection pump.

When you have accomplished this step post back and we will go to the next step. All you are going to be doing is breaking the checking down further into smaller self contained steps. Perhaps much easier than the whole picture at once at this stage.

First we are going to get the injection pump to crankshaft relationship checked or corrected if needed. Remember that you may not pick up the pump indicator in the first revolution. It could as easily be present in the second revolution.

If someone has a better or more sound approach chime in. At present it is just too confusing at least to me to proceed otherwise. Remember for the time being just ignore the camshaft. The old expression you have to start somewhere sound does seem to apply to your situation at present. Will slowly but methodically deal with each issue separatly.