I suggest that you label each new/used equipment if you really want to get rid of them, $150 for an rx580 8gb is within range if it's brand new and way overpriced if it's used, and the same applies to the other parts, and since you are selling many of them, most readers will think that they all are used in mining and not worth the price asked, just my 2 sats.
Fair. I've updated my post with more info.