Not quite.

Neither the Surly Disc Trucker nor the Specialized Sequoia Elite have the eyelets on their forks in the location needed to mount this particular rack's supports.
What your forks have is bosses for lowrider front pannier rack, which are located much lower.
There are no serial production disc forks with the eyelets in the right location for the VO rack you liked. This type of racks could be fitted onto your forks only by utilizing P-clamps, which I personally find ugly and the load-bearing capability is a bit compromised.

One can get a Nitto M18 front rack with longer struts and attach these to the lowrider eyelets as the struts are adjustable both in angle and in length. I have done so on one of my distance bikes with a front disc brake.

As to the cost - you'd only cry once, but you'll get a great trouble-free setup, while a handlebar-attached bag would cause you all sorts of grief.

Cheers!