If you're not attached to the idea of being able to swivel the units up independent of each other, which is how the mod armory bridge works, I would go with the Wilcox or more preferably the RQE bridge. I've run all three of the bridges to accomplish exactly what you're trying to do but I was using an MTM.
The RQE is by far the best for exactly what @MrPlayer said above, the adjustment to set the distance from your eye on each monocular is built right into the bridge. And it also has very intuitive IPD adjustment which helps level out the window on the thermal so your not looking at a canted screen as you would have on the mod armory bridge. The mod armory bridge had no IPD adjustment, it achieves this simply by the swiveling nature of the dovetail mounts on the bridge itself. I have also done this with the Wilcox bridge with the use of a custom machined dovetail for the MTM (the helmet mounts for these are hard to find and expensive) to match the distance from my eye to be the same as the PVS-14 on the opposite eye.
Obviously the RQE costs more than the double than the mod armory bridge but you will be glad you went that route if you so choose to do so, you absolutely get what you pay for.