I know we are admonished to build 'em stock first to help with any issues, but since my Stereomour II build I have been hooked on the simple balance circuit. So...I ordered a custom 1.75"x12" black anodized panel from FPE (no affiliation),drew a wiring plan and heated up the iron. Using an old cigar box for the batteries and 2 lengths of shielded 4 conductor, stranded wire into a 9 pin connector for power all the resistances and voltages checked out. I temporally inserted it between my Reduction and Stereomour and ...it's alive!
I will let it burn a bit before any critical listening, but there is no added hum or noise.
If my math is correct, the stock alder Stereomour II case it is sitting in has just enough room for a Seductor and a 1/4" strip between the panels. (How's that kit coming along Josh?)