You can still import them form Japan, but they are now so stupilly overpriced since places like South Africa still have dattos in production, just about any reasonable datsuns go there now to die. I spoke to a guy at AGI Auto parts, in Bayswater, Perth, and he said that
1. Finding one to import is almost impossible. You have to know someone in Japan, not just the usual connections.
2. Even when you do, its well over $1000 just to get it here, in unknown condition.
Considering these guys are supposed to be the import gurus, that says somehing...

I looked for vannettes and these seem to be mainly A12 (poor motor pushing that huge van) so that sunny are probally more common. I chanced upon mine in the local rag.