Rostock Max v2 Enclosure panel joiners

I liked the design of the jfettig's Max v2 enclosure (http://repables.com/r/447/), but couldn't find the panel joiners he used in Canada. Importing them was crazy expensive, like shipping 3x what they cost and I had to minimum order 10 (you only need 6).

Not nearly as slick, but these work. You'd need 9x of the corner ones, and 3x of the corner-jamb plus a piano hinge from the hardware store.