2x C-12F (King Air 200) at Elmo; 3 years
3x C-12J (Beech 1900C) at Yokota; 2 years with a pretty easy extension to 3 years.
1 C-12J at Holloman for testing
2 (I think) C-12Cs at Edwards shared between the test pilots and the C-12 schoolhouse
2 C-12Cs at Andrews for DIA training
multiple embassy locations with C-12Cs or Ds, including Bangkok, Manila, Cairo, Budapest, Brasilia, Bogota, Somewhere in Turkey, and I think Nairobi. There could be more.
Elmo and Yokota are reasonable to get as a 2nd assignment. Helps to be an IP in whatever airframe you're coming from, but not necessarily a requirement. PM for more.