The best fruiting passiflora variety for southern CA is "Fredericks", which is available at commercial nurseries. For example, in the San Diego area check Green Thumb and Walter Andersen. Seasonally it is stocked at Home Depot and Lowes.
For more northern climates (Corsica Island climate is similar to Brookings, Oregon), I'd recommend you try cultivars of Maypop available in the eastern U.S.
Also, there's a reputable online seller that caters to the northern California through Washington State climate:
One Green World. I highly recommend it.