Some of you probably already know what this is from the description. I just came across the ebay listing while searching for keycap sets. From what I can tell the switches are Cherry MX Blacks. The price is set at $390 + 16 S/H but to be fair this board is custom designed from the ground up (PCB/Keyset/Case).. seems reasonable to me. I'll include a few links for more information.
(https://i.imgur.com/FPId5oJ.jpg)
Geekhack "An amazing keyboard" thread https://geekhack.org/index.php?topic=82733.0 (https://geekhack.org/index.php?topic=82733.0)
I think this is the original work log post from the maker (Voluhar) https://imgur.com/a/CDDdf (https://imgur.com/a/CDDdf)
And the Ebay listing http://www.ebay.com/itm/Mechanical-keyboard-walnut-wood-base-aluminum-keycaps-/322146203719?hash=item4b0168f847:g:N10AAOSwLnBXW6n0 (http://www.ebay.com/itm/Mechanical-keyboard-walnut-wood-base-aluminum-keycaps-/322146203719?hash=item4b0168f847:g:N10AAOSwLnBXW6n0)