I got this from a Comair pilot:
Minimum hours I think 1000 or 1200, must have at least 200hrs twin, and must have turbine time.
Added advantages are multicrew experience
Intstructor ratings
Turbine instructor rating
ATP subjects are an added advantage
I suppose something in the order of 2000hrs with 500 multi turbine and full ATP should put you in the front---ish of the que