To be honest, you are not that cheap.

In New zealand, and Iphone pro 256gb Gold, brand new sells for $1900 nzd : https://www.trademe.co.nz/mobile-phones/mobile-phones/iphone/iphone-x/listing-2546932373.htm?rsqid=7ed2b89d5c1a4192847f77dfc4ce10d5-004

Which is $1190 usd

But when you factor, shipping, and no local warranty.

Anyway, good luck with the sale