It kinda looks homemade (not meant as an insult. It just doesn't have powder-coated finish, etc that most retail pieces have. It's actually more of a compliment. Most manufactured products these days aren't built to last, but to sell.). Have you tried contacting the people that posted the shots?
They'd probably be glad to share, especially if they did build it. A bit of ego stroking goes a long way when dealing with proud inventors and artists.
If they bought it, they can point you in the right direction.