Granted, there are not as many systems on the 23 as there are on the larger vessels that Ranger offers but,
The 23 has an electrical system, so a diagram might be nice. There is also a water tank with pressure pump for the 2 sinks, so location of the tank may be helpful along with the location of the black water tank. I remember a profile line drawing of both sides of my 27, showing all the thru hull discharge and vent locations, some I didn’t even have, but I know where they should be. Oh, fuel tank, there is one on the 23 also. I can see it but I would like a top side drawing of its location in relationship to everything else that I cannot see below deck.
I say this tongue in cheek. The 23 is a robust smaller vessel in the line and only missing a diesel in the cockpit (in my case) but it can come with one. For efficient consistency the manufacturing is assembly line style so the electrical and plumbing are installed the same way boat to boat. Modifications and troubleshooting could be easier with this information. I referred to the owner’s manual that I had for my 27 often enough. One is needed and would be appreciated.