Speedbird48 is correct on his nosebowl comment, because the starter is fitted on the back of the engine.
Of course he also meant that on the C85-12 you cannot have the starter and gennie NOT fitted because all the oil would fall out of the holes where these accessories would fit. The C85-12 is not approved without these accessories fitted. (well at least on FAA certificated aircraft).
My small Cont equipped engine has exactly the same fit as Kingy advocates. We run a transponder too, but the gell cell doesn't last too long with the transponder on. Transponders require more than 12V to operate!