Great post!
I take issue with the masculinity preachers who claim the intent and purpose of a woman is breeding. They are narrow-minded. A purpose of a woman is breeding, but that rolls up with all the other potential she was created to have. The intent and purpose of a woman is to be a helpmeet to the man. (Gen 2:18) That is the basis from which all else follows regarding her purpose. After that, the woman was subjugated to man, and he was made to rule her. (Gen 3:16) Therefore, it is entirely up to her own husband and not up to herself or anyone else to determine for her what form her help is to take.
Based upon that simple principle, my conclusion is that there is zero limit on what situations could be considered valid for her, so long as it is the husband's will. Some would be best, some worse, but none Scripturally invalid. A husband, as with any leader, would be wise to match his people to their strengths, but even if he is not wise, her place is simply wherever he puts her. I do not know of a Biblical reference in contradiction to this. The passage in Titus might appear to restrain a husband to a decision tree of only one branch, but I'm pretty sure it is a plea to wisdom and not a command from God. (Titus 2:3-5)
With that in mind, the normal wise practice would be to place her over domestic affairs. However, each man should know his own women, and each man is solely responsible for how things turn out in his own kingdom. Your Proverbs reference does a lot to poke holes in the hot air bubble that is the "tradfem" doctrine.
A woman who doesn't want to have children would be unsuitable for a lot of men, but not all. That level of willingness doesn't make her intrinsically a better or worse wife, but probably is a great test for whether or not she would be a good wife for you. Remember that children are born of a husband's will. (John 1:13) As far as I know, there is no law that says every wife must bear children.
The same principle applies to health issues or any other characteristic. The woman should suit you, and no one else should be concerned. Nabal's wife was the death of him, so to speak, but to David she was highly valuable. She was suited for David but ill-suited for Nabal. (1 Sam 25)
So, bearing all of that in mind, I can say confidently that it is Biblically valid to have a wife who walks a completely different life, even one far away. That arrangement would not suit many men, but for some it would be more than adequate. I have a distant neighbor who's wife is foreign. He owns a multinational business, thanks to her. She is with him sometimes, at other times she manages his business affairs abroad among a people foreign to him but native to her, but at all times she honors God with her obedience to her husband. For him, she is the perfect wife. She is serving him faithfully as he determined she should.
I don't think long-distance marriage is all that modern. Recall men of old who spent months or years away from home while their wives managed all of their affairs with only letters exchanged in the meantime: travelling merchants, soldiers, sailors, explorers. All modern technology has done is cater to our impatience and fear. Men and women of old did the same just as or more commonly, and with much greater faith and patience.