Try the Musical Fidelity A3cr, around $750 used. (It does have a phono section, though.)
Good point. Frankly at the $1K mark you're looking for something in the low end of the (high end) market. Making it dual mono means doubling up on a lot of stuff. As a result, I'm pretty well certain that even if you find a good one (that Musical Fidelity piece is probably a nice one) at your price point, you can find something that sounds better that's NOT dual mono.