you're doing it in silver IIRC? I thought about seeing if we could match the color scheme that Cornish used which was an industrial "bare metal" look, but I like purple, and with the sparkle and white knobs I think it looks great. I also decided on using Dual vs Duplex in the name, thinking fewer letters = bigger font.
FWIW, I'm building a new pedal board around it. So far: a Dunlop Crybaby Mini wah that I have sitting on a shelf for years, the Dual Drive, and maybe a compressor or EQ, after...the compressor may make the tone even smoother, liquid and glassy for leads. I plan to see how they work with the Dual Drive. I also plan to get a a new Boss EX-4 to put in the loop for time-based effects - waiting for them to be in stock, and waiting for my MF membership points to be available.
Like I posted before, I think more people would be interested in the Duplex if there was a good demo, especially with a Marshall JTM 45, plexi, JMP, or JCM 800. That's the era, and amps, Cornish designed these circuits for, with a few added tweaks along the way leading to the final SS-3 and G-2 versions.