Perdue ( French for lost) recommendation ;'D
When you said your husband was determined to buy a Whirlpool, I kept quiet; after all, he's buying it, not me. But for the capacity you're looking for, and no electronics, the Speed Queen will not disappoint; in fact, it has more usable room because the agitator is streamlined in the center post and plate, thus making more room available for laundry.
Funny, we were just looking inside my sister Lynn's on Christmas Day. My nephew Daniel was looking for a machine in the family large enough to wash one of his son's stuffed animals. His Kenmore couldn't handle it. Lynn's's had her Speed Queen for years, and the tub looks mammoth, which has been their standard 3+ cubic feet for a long time. Like the old Maytags, it is a dependable, reliable work horse.
So had your husband not spoken up, I was planning to tell you that a Speed Queen is the machine for you. So there you go. Buy a Speed Queen.
Happy Extra-large load, gimmick free washing!