I just want to give a warning to OP, because with this move you can lose your BTC.

Let's say you send me $1,000 in BTC to buy a guitar on eBay, I do the payment and send you a screenshot, then you send me the BTC. After that i call my bank and tell them that i see a payment that i never did, they will refund me the $1,000 and you will never get the guitar.

This is why this is a terrible idea and you need to be careful with a move like this one.