Professional Pilot survey shows 135 Captain on a King Air 90 at low $49k, average $57k, and high $72k. I work in an area that has always been at the low end of pilot pay and yet my company just hired a 90 pilot for either $60k or $65k a year. That is a new hire to the company who has zero King Air experience. It was also the first time in my company's history that they had to publicly post a job opening. Every hire previous to this has been an internal recommendation or somebody local who was known to the company.
Times are changing for the better. I would shoot for $65k at a minimum considering you are responsible for the jets also.