It took a while, but I finally managed to assemble the first trial bunch of MAP2 boards. I took a piece of copper clad laminate, made roughly half inch wide tracks by cutting off a strip about a sixteenth of a inch between them, drilled holes, and assembled the boards on them using short threaded standoffs. The half inch wide tracks alternate between [+] and [-] , so I wired up all the positive and negative ones.

Here's a video of the 20 assembled boards, powered from a 5V DC source.