But to run a starter, no electrical "system" is required. Just a
battery capable of cranking the engine over a few times. Recharge it
when you park the plane.
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Well, let's see now. You've still got the battery onboard so that
means a battery box & cables. Then the cables need some kind of
control... even a knife switch will do but you gotta have one...
unless you're planning on just rubbing the cable against the battery
post. From the switch at least one of the cables has to run to the
starter motor which of course has to be held in position so as to mate
with the ring-gear, which you still need too.

So it looks alike you've still got everything in the average
electrical 'system' except the dynamo & regulator/rectifier. And if
you're using the coaxially installed jobbie I've described in previous
articles you've just saved yourself the grand sum of 7.36 pounds,
ending up with 90% of an electrical system that can't produce any
electricity.

With logic like that I'd be ashamed to sign my posts too :-)

-R.S.Hoover