Did he post dimensions? I'm also wondering about transporting that thing. I think it's easy to make a cheap one, but where does that leave you as far as portability and protection go?
To be honest, with all the velcro and cable ties, picking it up and carrying is fine because there's no chance anything will fall off. As for dimensions, I bought the smallest Gorm shelf available (this is the same size as the PedalTrain Jr. according to my poor maths), but that was a mistake; try fitting a Big Muff Pi and a Crybaby and a Whammy on the smallest shelf... not happening. Try a bigger shelf for practicality. Only thing then is, it.. has... become... Cumbersome (Seven Mary Three
), a little difficult to carry.