There are short axles made for like Bromptons, when they fit a AW3 hub ..
120mm dropout .
the old 2 cable 2 shifter 5 speeds went out of production long ago,
but there was that option on Mk2 Bromptons, back in the day.
SJScycles in England a good source to try, it seems, for Sturmey spares
from older eras.