200 and B200 have the same CG and W&B forms. Typically the weplty wieight is around 8200 lbs. Max ramp is 12590 with mtow of 12.5 3600 lbs of fuel and that will get you 5.5 hours of flying at 265 kts.
Basically if it fits in the door the King Air will take it. on a side note. The military flies the same airplane at 14.7 MTOW and requires a type rating.