In the narrow hub world you have to be creative, now ..
buy a freewheel hub regular 36 hole is common. 24 spoke?
and replace the axle with a shorter one You can cut them shorter but put the Nuts on first
so unscrewing the nut after the cut restores the thread on ability when you're done
and You probably dont need any spacers other than the cone and Locknuts on the axle...
if well Off (one of the Delaware duPont family ) Brompton makes a 28 hole Hub for 1 or 2 cogs .. they fit in a 117 frame so pretty close .
[Update] I just got a Bike Friday Tikit, they buy 24 hole rims, this a 16"-349, and used a 36 hole IGH on this,
2 cross, quite large flange....
...
Last edited by fietsbob; 06-03-17 at 10:36 AM.