Sonangol may have some barrels out there. Its been awhile but i don't remember a truck being there- that may have changed with the roads opening etc. Good luck organizing that...
Failing that you could wait for a white Herc to show up and "aquire" some pre-loved jetA from them...
Safely assume both will require unmarked USD in the large-headed-president-post 2001 variety...
HJ