Came across a fork with a similar problem of very wide spacing. The only solution in the end was a wide rim, rhyno lite was the bare minimum at just under 30mm I think. You could rig it with the extra long threaded post kool stop eagle claw pads and a ton of spacers. I hated how rigged and kludgy it looked though.
I have a bike with extremely wide rims that has the opposite problem, can't set most brakes wide enough. The solution was STX v-brakes, as they take smooth post canti pads, you can slide them in/out about as far as you need.
Last edited by wesmamyke; 03-27-21 at 08:12 PM.