Dude, 1000hrs PIC in a Chieftan don't get ya anywhere near Brown or Purple. I have over 1000hrs Turbine PIC, Type rating, and more than double Ameriflights hiring mins and still not anywhere near the Brown or Purple as you like to call it.
I also know right now you're gonna need ALOT more time and experience than the silly 1000 PIC in a light twin. The BE99 is also considered light twin. The BE1900 I'm POSTIVE there are pilots with alot more experience than you that will get those slots. The Lear? forget about it. Guys/Gals work 5-20yrs trying to get into "Brown or Purple" be humble and pay your dues and enjoy the ride my young friend.