That kind of PSO would be best suited to an outfit like AIS Airlines that has operated various PSOs across Europe with Jetstream 31s. They are pretty much a flight school with an attached airline that serves as a launching pad for their students. i(I guess should it ever come to crewing a Wick base, they would need to resort to drawing straws)..
PS I might be a little biased as far as WIC is concerned. My elaborated plan to log WIC as one of the few remaining UK airports I have not travelled from ended up in a Loganair minivan driving me down to INV at breakneck speed (and that was the day after Loganair had to cancel various intra-Orkney flights I was booked on). 'Nuff said...