Your option would be to wire one of these outlets at the stern and connect it to you NAV light circuit. Then the pole is removable when not in use.
Or if you rarely boat at dusk/dark, consider one of these. Perhaps attaching it to your ski pole if you have one installed?
The all around white light needs to be at least 39" above the red/green sidelights. The "man" might give you credit for having something but will probably make you get it corrected. From the specs on positioning of the lights required: "(d) The masthead light, or the all-round light described in Rule
23(d)(§83.23(d) of this chapter), of a power-driven vessel of less than
12 meters in length shall be carried at least one meter higher than the
sidelights." Just sayin!