Hi Kenjee,
I have been living in Angola mostly permanently for the past 12 years. Having been involved in driving license, vehicle registration and vehicle ownership document issuing systems for both the Ministry of Interior and Ministry of Justice, I pretty much know exactly what it is you need to do/who to know to get the process of buying cars, or more importantly, getting the documents issued seamlessly. It can be a painful and laborious process. I can help you out with sourcing a car and getting all relevant docs sorted out and issued. I'm going to be honest with you, what I'd like to get out of this deal is just the opportunity to exchange some local currency for foreign currency (preferably USD). So my thoughts are that we (or you if you'd like) find you a suitable car, I pay for it with Kwanzas that I have on hand, you pay me the equivalent in USD (fair exchange rate, no commissions either way) and I will help you through the rest of the document issuing process no problem.
Cheers,
Darren