my aircraft is a Sonex, the prop is a Sensenich w54jj5-56 (diameter 54" ; pitch 56"). This is à cruise prop.
I think 54 X 54" could be good for shorter takeoff.
Max airspeed is 245 km/h at 3000 ft, 75hp, 3300 rpm.
The engine is Jabiru A2200; SN 2277 with 260° camshaft, it putsout 80 HP at 3300 rpm at sea level.
Do you want I send you my old Sensenich prop for the hub shape ?
Ideal hub shape :
Best regards.