I would second the suggestion to look into the king air option, new or pre owned.
Best of both worlds I guess. New machine = less potential for nasty surprises. Plenty about, no shortage of pilots or technicians.
An in depth look at the running costs and performance can be informative too.
My understanding, and I'm prepared to be corrected, is that the PC-12 requires maintenance every 100 hours. Compared to 200 for the 200. So depending on your utilisation the running costs overall aren't necessarily cheaper.
Contaminated runway perf on the PC-12 sees a degradation in it's short field by quite a considerable margin.
The point I'm making is that there are more factors to consider that require in depth investigation. And with your family and safety at the forefront of your considerations a twin really should top your list in my opinion.
Its a nice choice to have though so should be good fun searching!!