Re: Getting ready to add shore power
I agree with Tap's comments.
The blue color is confusing, though, as is the existing wiring on the panel (black/hot wire going to one of the busses).
I'd start by removing all the old wiring from the breakers and busses. Then, start afresh using the proper wire coloring...much less confusing.
US single-phase AC wire coloring:
black = hot
white = neutral
green = grounding