Isn't this a little expensive for 8 used miners?
-$5k divided by 8 is $625 for a used miner and psu (the psu I am assuming is shared since its a 1200w). Shipping is not necessarily included, depending on where you live.
-bitmain is .893 BTC (currently BTC is at $487.01) = $434.81 and if you order a corsair 850 for ~$80-~$100 that brings the price to maybe $534 shipped for new ones.
Which means I could pick up 8 for no more then $4200 shipped for new ones.
Not to thread crap, but you are charging almost $100 more per miner for used equipment, which we have no idea how long they have been running, if they have been overclocked (which means they work harder), etc.
I think if you want to sell these, you need to lower your price according to used, not brand new (plus a premium).