I recently got a tokunbo (never driven in Nigeria before) toyota truck in Lagos and want to send it to Anambra.

At the moment, the truck only has purchase receipts, customs paper and change of ownership documents.
Vehicle license, plate number, road worthiness, vehicle insurance and related documents will be processed in Anambra subsequently, as the truck will be used in Anambra.

I am looking at the best way to get this truck from Lagos to Anambra without facing extortion and harrassment from Police officers, customs, FRSC and road touts.

Someone told me that he has been delivering tokunbo cars from Lagos to Abuja - and that he can deliver this car to the East without any issues. However, I think delivering from Lagos to Abuja, and delivering from Lagos to the East are different issues altogether.
So, I still think the driver of the tokunbo truck will be a big victim of extortion and harrassment.

My people - what options are available for delivering this truck from Lagos to Anambra without facing any harrassment and extortion?

Why don't you process the documents in Anambra first, when you're done you can then send the vehicle to Anambra