That would be awesome! I have in mind to build a dual-effect pedal thay utilizes the sound of the Soft Focus as one half and an overdrive as the front half, in the spirit of Patch #18 from the old Yamaha FX500. In fact, that's probably what I would call it ("Patch 18"). Or maybe the "Symphonic Distortion", since that was the name Yamaha gave it. It sounds great with two pedals accomplishing the effect (especially with a dual delay at the end), but I want to try housing the whole thing in a single enclosure.
In any case, I just want to build this effect! LOVE IT!