A106? Wow, that's a beast. Is it really worth the space of the 2 other filters? I don't really use HP sounds much, so the LP normalling to the HP is something I'm not sure I am into. The resonance in/out is interesting, I guess you can make it scream if you crank up the CV here.

Here are photos of my prototype build that I did in just 15mins (in thin crappy plywood).
https://prntscr.com/kalf79
https://prntscr.com/kalfrp

I am realizing a couple things. 1) I need to countersink the metal otherwise my modules won't fit all the way up to the edge. 2) The 1U row only has a single mounting point, so I need to add some bracket or something so it won't spin! 3) It is tempting to just put my modules in this thing already since I don't have room in my other rack.

Edit: Yep, too tempting, I put all the parts together
http://prntscr.com/kan5cn

Next I have to figure out where the power-entry is gonna go, side or back panel. Also need to figure out some kind of flying-bus or something for the 1U modules, as I have more than 20 parts but only 20 headers on the board.