Get to 1500 as quick as you can and get to the regionals. I have only been at the regionals for 6 months so other opinions will be good. I had 800tt and got a Lear 31 part 91 right seat gig and did that and instructed part time till I had 1500. At 1200tt, 300 hours time in type, sic typed from cae I couldn't even get insured to take an airplane to mexico. At 1500tt 135 companies will put you right seat in a single pilot citation, cj, maybe a hawker if your lucky is what I found when I was looking. Some people can bypass the regionals but the numbers are small and in my mind it's taking a big risk competing with thousands of guys that have prior 121 time. If you go to the regionals and decide its not for you then you go back corporate with 121 time, an atp, and a pic type in an aircraft thats probably between 40-90k which might look better on a resume. Hopefully you get some more feedback from more seasoned people. Good luck