Hi There,
Congrats on your upcomming wedding.
Yes it seems correct. I am not a Immigration officer, but have learnt how this is done here.
See the previous reply regarding the Emce Bouwer's contact who can help you with the Immigration papers, but surely you would not need it, as she is located here in Windhoek.
Somehow documents are handled quicker at Consulates than here in Namibia's Immigration Offices. So get your documents in order before you come here.
Even if you are married in RSA or Germany,-take the Marriage Certificate to the Namibian Consulate who in return can 'prove' you are "Domicile" by paper stuck into your passport. It is proof that you are then legally Married to a Namibian Citizen,(which means you have the right to abode/live and work in Namibia) and you can then obtain a multiple entry visa to travel freely accross the borders.
Regards