I don't know your budget or what's available in Nigeria but if I was looking I'd be checking out beforward.jp as I know they ship directly to Nigeria from Japan. Always interesting what you get but usually good price on used vehicles from there. A couple of years ago they had vehicles as little as $50HBD.....but shipping got expensive ;)
Yes, so many people here buy so much more vehicle than they need and then have to slave to pay for its upkeep. That is no way to live if you ask me