Try to get your CFI, II and MEI through AllAtps. It will cost you a little $, but it will make you a better pilot. Then you can get a job with them and move on at 1000tt and 600+ multi. For any regional you need to be instrument current and very proficient. Teaching, especially instruments will keep you instrument current. The last thing you need to happen is get hired by a regional and struggle with training because you lack the instrument skills. Plus as a former CFI, you will be more of an asset to the CA and be a better CA when you upgrade. Something to think about.