Woodpeckers has just announced a set of DF 500 Domino Depth Sleeves.
Of course, you could easily make your own from 1/2" copper or PVC pipe, a hacksaw, a disc sander and calipers. I don't see the need for one for every 32nd of an inch, since they are stackable. They point this out this feature for the shims, but not for the sleeves. A reduced set of 1/64, 1/32, 1/16, 1/8, 1/4 and 1/2" would give you any depth less than 1" that you needed to the nearest 1/64".
I don't think I understand why the stops are in imperial units, but the shims are in metric units.
There is no mention of plans for developing a set for the DF 700 XL.