Pulled the instrument panel out today, took all the instruments out and added some switches. Two for the magnetos (sorry Mark, CDI's!) with covers over them, one for fuel pump and a spare which I haven't decided yet, sure I'll need it. The Sav wiring diagram shows switches for landing lights, strobes, position lights and cabin light, none of which I anticipate having.
Also a couple of circuit breakers, 10A and 15A.
Bought a double USB socket (2 x 2.4A) which I'll mount in the baggage area, mounts flat and has a cover so you can put stuff on it if necessary.
Unfortunately when I was mucking around with instruments, seems to have chipped the hammertone paint I put on. May have been a dodgy job by me in the first place. Now thinking about 3M covering in carbon fibre look again.