Not lugged but Bruce Gordon BLT-X is a 26" wheel touring bike. For a big up-charge he can built a lugged one, custom.

disc brakes , adds some more cost over rim brakes as standard ..


As I read it Thorn has MTB disc brake forks they are straight blade,
they wont build a bent for rake fork with disc brakes ...
braking force, theoretically at least, un bends the fork on 1 side when you apply the brakes.

German Tout Terrain uses an oversize left blade on their better disc brake fork,

thicker wall tube fork blades is another approach.