Rep 1 Filament Monitor Mount

A few months ago I purchased a set of Aaron Tunell's filament monitors that were posted here: http://www.thingiverse.com/thing:345216 Now, I knew that my mounting arrangement was going to be significantly different, because I long ago axed the rear mounted spools, and mounted them overhead, feeding straight down. This also got rid of the guide tubes. Also, I have the excellent acrylic hood made by Dave Randolph here: http://www.thingiverse.com/thing:23386

With this hood, and the spools o