If the VOs turn out to be to narrow, try Colin at Kelpie who makes custom fat tire fenders in a thicker gauge of aluminum with 6.5 mm instead of 5 mm stays; about $250 or so, IIRC. (He used to make them from titanium at $100 more but said they were so strong that, when he collected a stick under his front, it bent the fork but not the fender; he started using aluminum after that incident.)
The finish is not polished, but they're not bad looking, and they are strong. My Matthews RBFD has 3" of toe overlap with fender, so I kick the front from time to time; no damage yet. And not too heavy, either; the 80 mm wide ones (to fit tires almost 62 mm wide) with second (tho' short) front stay weigh about 2 lb the pair, about the weight of a pair of SKS's in the wider sizes.