Electronic Device shipping to Pakistan via DHL or FedEx - Customs Hassle

A person im working with wants to send me a vr headset worth around $1800 USD. Given the price, my only concern is that customs will withhold it and ask me to pay double its price for no reason. I intend to use it for personal consumption.

They will be sending it through FedEx. An option i have in mind is asking the sender to send a used device instead of a brand new one with the box opened. Do i get the sender to also understate the price of the device?

Will that workout? What is the best way to not get stuck at customs? What service is preferred, FedEx or DHL?

Please help!!