Dirk I 100% agree with what LeBaron 1973 is saying. There are people who scour junkyards in the US who are C-body enthusiasts themselves and are reasonable in pricing. PayPal makes things like this possible if you are willing and able to use that service from SA. Just understand international shipping costs (and risk) will be at your expense, of course.
Would love to see a pic of the car you are trying to restore/maintain, here in this thread. And a list of what parts you are looking for. But yes, posting a Parts Wanted thread is the best way to go.