Look X-Track pedals seem to have the same 53mm Q-factor as the Assiomas, and a stack height within 0.6mm. Similar price to Shimano M520s (ie. cheap!), which have almost the same total stack height as the Assiomas, but with a wider 55mm Q-factor (same as the M540s & PD-M8100s). I think!
Could all do the job, but I’ll probably try some basic Look X-Tracks, as I favour the identical Q-factor most.