Sell it on ebay. They sell at good prices there and buyer have protection.
Be very careful with selling this sort of item on ebay. User above is right in that ebay/paypal has strong
BUYER protection while leaving sellers such as yourself little protection.
From what I've read paypal has been willing to let buyers have 180 DAYS to file a return! And that is even if you put No Returns in the listing.
Other scenarios could be that a hacked/fraudulent paypal account is used for this high value item. Paypal will eventually realize the mistake and take your money back by charging your credit card on file or bill you even after you have shipped the item.
Also, I have tried to sell miners on ebay before but paypal was going to hold the funds for 21 days yet expect me to still ship within a business day.
So just giving you heads up. Escrow sells here may not net you price you want but is the safest for both buyer and seller.