Leave the bilge pump direct connected.

At least that way you can cut off all the radio gear with one switch. I appreciate the "battle short" mentality.

On a sidenote, your ladder looks exactly like mine, but I have the bottom barrel bolt on the other leg. What is that box below the ladder? I also have rubber treads on my ladder... as I discovered that wood polished by use, can be quite slippery under bare feet.