I too think a touring bike looks better without them, but I'm a fan of the Gilles Berthoud stainless fenders. They work well (very sturdy) and don't make the bike look worse imo. In your case they could be spray-painted black. There is an optional "mudflap" which, I've been told, will increase the lifespan of the drivetrain. In any case you don't get your feet wet. However, the aesthetics of the mudflap takes a bit of getting used to.
And there is always the cheap plastic ones from the local supermarket. Cover them with enough luggage and they won't show
Of course, one is probably better off without fenders going places where mud and ice will clog up between them and the wheels. But anyone who has ridden in the rain without them knows the fountain somehow finds its way to the eyes/nostrils and the back of the head. lol
