Fly to Niuatoputapu Is. (OC-191)

I will fly to Niuatoputapu Is. (OC-191) on 12th July. Hopefuly, flight will be ok as scheduled. If I can land on OC-191, I will try to QRV for a few days between 14th and 20th July from there by battery (20-50w output) . A35JP/P means OC-191 during this period.