Sorry to reiterate this, but +1 on never going to get what you're asking for it. I just purchased two Zeusminer Lightning X6 (40MH each) for $400 each + half of shipping cost. If you price this appropriately I'm sure you'll sell it. Good luck with you sale.
It would not be that much for shipping on mine. I have priced appropriately. This with a simple mod can get 30. And a $100 PSU is included.
I have gotten higher offers then that, I still need to sell and I can do $250 you pay shipping. Shipping should only be about $100, so your getting the rig 50% off pretty much, and its brand new.
How are you planning on shipping this and could you let me know how you went from, "It would not be that much for shipping on mine," to "Shipping should only be about $100..."? Just for interest's sake I went to USPS's postage price calculator and put in a 25 lb package in a 20x14x20 box from Florida to Oregon aka about as far as you can ship something within the USA. Shipping cost... $42.96.
I'll give you $200 + 1/2 of the real shipping cost for this without the power supply.