I'm not an adcom, but I think your story sounds really compelling and it doesn't really seem to me like you need a post-bacc with that upward trend + MCAT. I think you have a good shot at the top TX schools and Baylor. Personally, as a TX applicant this cycle, I wasted a lot of time and money applying to mid-tier OOS schools, so you might consider not applying to low-yield schools like Tulane and Georgetown.