I also did this on a 14. However, rather than swapping sides, I moved the rib outboard 5/16”. This left room for a 1/4” thick delrin block to capture the hinge pins like shown above (held by screws/nut plates). I considered swapping, but decided I like the aesthetics of no flanges.
RV-14A Builder - kit #136, XP-400 Aero Sport Power
N314KC - First flight Mar 8, 2017, 24th in the air, >500 hrs
Sport Pilot (weight-shift control) - Airborne XT912
Dues paid 12/2018