Granted, I've only compared a handful of the bikes you listed with your Fuji, but I have to admit that I'm not clear how any of them are "definitely an upgrade" from your current bike. Bit and pieces might be, but overall, they're a similar mix of Shimano Sora and Tiagra components and are all squarely within the entry level category. The only thing I'm not entirely sure of is whether Shimano has improved the quality of those component groups over the last couple of years. Short of that, I'll be honest that I think you would be better off continuing to save until you can better afford a bike that is not entry-level. Otherwise, I think you just won't see the return on your investment that you're looking for. Or keep your eye out for a good used bike, but I know that might be hard given the size you need.
If memory serves, you were frustrated with the fact that your bike wasn't staying well tuned. Have you tried a different mechanic? As some suggested in your other thread, it might be worth it to get a second opinion so to speak. Even if a new mechanic doesn't solve your issues, he or she might suggest that you change out a component or two for better performance. That might be a better interim solution than buying another entry level bike.
Certainly, others may disagree with my take on this. I'm largely going off spec lists and have no idea how any of these bikes actually ride or weigh. Maybe I'm undevaluing Shimano's current lower end groups.
Live with intention. Walk to the edge. Listen hard. Practice wellness. Play with abandon. Laugh. Choose with no regret. Continue to learn. Appreciate your friends. Do what you love. Live as if this is all there is.
--Mary Anne Radmacher