e-Wand is in the building! Had to do a little minor trimming on the right to make things fit, but worked out fine.
The rod is fairly large once you have it in place (not surprising since it holds six 2A batteries, motor, etc.) so we'll see how the WAF is when she finally notices it. May take a day or so, she tends to have tunnel vision when she's working in the office. This is what she's been asking for since I first automated the blinds, so it should be shouts of joy and angels singing.
The motor is slower than the iBlinds motor, and about the same level of noise but a different timbre. The main concern I'd have about the e-Wand is long-term reliability of the relatively small motor, especially managing a larger set of blinds, but manual control at the blinds is evidently a must in our house, and this is the one option that provides automation w/ability to tweak position or fully open/close manually.
What I'd like is a driver like the excellent one that @bertabcd1234 made for iBlinds, that includes a "dimmer" control option. That makes it compatible w/a wider range of apps (majority include dimmers, much fewer have shades), and can adjust dim level in percentage changes (e.g., reduce dim -12%), and I can use Google Home to easily control it (set xxxx to 25%).
Would also love to see the Temperature and Light sensor capability of the wands integrated if that's at all possible, but since those are controlled on the wand w/switches, I assume doubtful the wand does any reporting of temp or lux.