Crossing from Togo to Gabon- infos needed
 

Hi guys,
I'm thinking to plan the new crossing leg, from Togo untill (I hope) Gabon or more deep in south... during the next summer holidays (august)
I wonder if someone has done it before, and were are the real hassles, troubles, road crossed conditions, etc. thinking to pass through Nigeria, Cameroun, Eq. Guinea? and Gabon...
Is it possible to leave the car there? any places?
Is it the carnet de passage absolutely necessary ? I mean, law says yes but... what happens in the real life?

What about get through DRC, Angola untill Namibia? I eared about some difficulties in Cabinda area... is it confirmed?

Thanks a lot!
Any other kind of suggestion will be really appreciate!
Cheers
ag