As you might already know, the gold color model of the Nexus 6P isn't available in the US yet. However, recent reports are suggesting that the variant - which is officially called as Nexus 6P Special Edition and is currently only available in Japan and India - will be launched in the country soon.
You can also search the web for Nexus 6P review and price in Nigeria and in India. Also, there should be availability of Nexus 6P in one of the Nigerian best shopping portal; Jumia. You really need to check out this phone because its benchmark and battery life power are one of the things that will WOW you.
Check out this Comparison
Nexus 6p vs Samsung Galaxy Note 5