I know this is a slightly old thread, but I thought of another way to do this that would be neater.
IN a 125B type box (or whatever) set up an overall input and an overall output. (say in from guitar, and out to amp). Normal type jack.
The between those two jacks, maybe on the top side of the box, you wire up a number of stereo jacks (we'll number them J1 to J4) in a predetermined order. The way you will wire them is (for example) input jack to J1R, J!L to J2R, J2L to J3R...J4L to output jack. (Can the grounds all be shared straight through?)
Then to have a pedal in that chain, you use one of those mixer insert type cords with a stereo plug on one end, and a mono R, and mono L Ying off from it. You plug the R & L as appropriate into your pedal, then the stereo end into the patchbay you just built. You have 4 patch jacks, so plug in four pedals. The pedals will be in the order of their insertion into J1-4. You want to change the pedal order, you just swap around those stereo plugs in the 4 jacks on the patch bay. A single plug for each pedal.
I am assuming in this that the signal ground can just be shared all the way through.
The advantage is simplicity, one plug for each pedal, one cable for each, order is determined by jack order.
If this would work, it might even be a way to simply an effect loop pedal, instead of having to have both an in and out for each pedal, you just have the single stereo jack that covers both, and one cable instead of two.
Just a thought.