Thanks for the complement. For now I'll have to pass on the offer. I don't have anyone willing to hold the camera for that long and it takes two hands to operate the power tools (sometimes three). Also, the materials that I am hoarding are probably going to be used to build an algae scrubber.
With a short stretch of the imagination, this can be duplicated. Measurements are not that important considering that this was customized to fit on the end of a 75g. If I were to post the sizes, it would only be good for the end of another 75g. Also, I designed this for 600 gph.
What is more important, is to do the math for each section and customize the overflow to fit a particular need or application. This can be adapted for any sized tank.