Enugu is old school Nigeria and one of the more corrupt destinations. It will not surprise you in a positive way like Lagos, Abuja, PH, Kano or Calabar.
Agree that Evergreen Apple is your best bet.
EAN Aviation That being said...
Just because there is supposed to be a handling agent upon arrival, does not mean you will have a person representing
your interests when you arrive.
A foreign registered aircraft arriving in Enugu with all foreign crew is like a flying automated teller machine and might as well have dollar signs for winglets. They know you're there for a one-off visit and will act as such.
The collective attitude of "What do you have for us?" in Enugu is pervasive.
You can turn there in about 20 minutes. However, to ensure a quick turn, be prepared to make an "offering."
Dash is king. Arrive pre-lubed and you will depart feeling less pain.