RE: Tough gun choice. What should I look for?
It sounds kind of like you want Dom Perion on a beer budget. The only one that can decide what's perfect for you is you.
It's obvious you aren't a newcommer to hunting or guns and you have experience with various calibers and rifles. All I can suggest is write down what you liked and disliked about every gun you have owned and look for the rifle that has more pros than cons on your list and chose that one.