Photojournalist coming to Luanda needs help/advice

Hi. I am a photojournalist coming to Luanda next week. I'm doing a story about the challenges Angola faces and how despite massive oil wealth many of the countries citizens still live in poverty. I don't speak a word of Portuguese and could do with some assistance translating. I can pay a small day rate - maybe someone has an Angolan friend who speaks a little english. Also I need somewhere cheap to stay - the budgets in my industry have collapsed and hotels in Luanda seem very expensive. Perhaps someone has a spare room I can hire for a week or you may know a secure but inexpensive hotel. I also want to contrast the extreme wealth with poverty so suggestions of the most exclusive new years eve parties would be good. any ideas? thanks, Robin