I build mine when it came out, I used a variation on the pinning method.
I drilled all trough the fuselage and installed a tube (actually replacing 2 parts of the cockpit assambly)
and then inserted 2 pins on each wing. It took me quite a long time to figure out exactly where to drill so I could replace those cockpit parts, but it worked out in the end.
I also replaced the kingpost with a brass structure, soldered together for extra support with the structural rigging I used.
but basic drilling and pinning should work, I would recommend using structural rigging (fishing line or something else with strenght) for rigging the upper side anyway.
those wings are massive and heavy, you need that strenght.
my method may be a bit overkill, but it all worked and I will never worry about those wings!!
good luck and have fun, it is a great kit!