i don't see where you can put the aikon outside of replacing the current pcb, there is no room anywhere really, under the "baseplate" basically the black cover, there is no room, it's just plastic when you lift it up, the only real "cavity" is the pcb area, i'll find my extra nostromo i have in storage if i can, and open it up, not gonna open up my cherry modded nostromo tho, so gotta find the spare buried under many rubbermaids.
maybe the "hump" could work, have to open and see tho (beena while)