Having been around the corporate world, CFI, regionals and majors everyone is giving you very sound advice. But I think the best one is to stay where you are, build more time on the side and build contacts. I would have loved to be in your position flying a Lear.
Just be in a position to move on, on good terms, if something good and STABLE comes along.
I have one question for you though, is the Delta retiree offering any advice?
Good luck.