Now that age 65 is law, you have more time available to you in the 121 world. A career at a regional and major are not out of the question for you if you play your cards right. Get current on a cheap twin and become familiar with all your IFR work... get your commercial and have fun! You have proportionally more multi time against TT than most applicants. Most regionals would probably pick you up with your times. Good luck, cya on the line!