Any of the XL Specialty hardware that clamps to the tension ring instead of the posts will work with your drum. XL Specialty sells carriers and hardware under their own name, as well as Mapex, Premier, and Ludwig. Carriers from any of those brands should work, except maybe Ludwig. (Ludwig's free-floating snares have tilters attached to the drum, so Ludwig carriers may not come with the mounting bracket you'd need.)
HERE is the Mapex-branded version of an XL snare attachment, and you could potentially buy just that piece and use it with another carrier. But of course there's a catch: XL uses steel j-bars that are a smaller diameter than the aluminum ones used by Randall May or Dynasty. You would need to make modifications (like maybe bigger j-bar receiver tubes) to use a RM carrier.
Before resorting to that... It may not be possible to slide the clamp around a tension post on your Premier drum because the clearance between the post and shell is too small, but is it possible to slide it up from the bottom? I remember running into something similar with some other mounting hardware before -- old Pearl stuff, maybe?
Another option would be to buy Dynasty tilters (see attached image) and bolt them to the shell. You'd be able to use your RM carrier. Tilters will run you about $35-40 from a Dynasty dealer. The drawback here is that you would need to drill the shell and mount hardware directly to it.