I could try to get (or wind) the right coils, etc. and match the crossovers (hard to do), but thought I'd try a different route, since I have the necessary amps just sitting around doing nothing. And besides, passive crossovers waste power, right?
Right now, I'm running all three channels with an A-753x, and it's pretty powerful (three channels, rated 440W into 4 ohms, and 770 into 2). But with Amazings there can never too much power, even with the extra drivers. So the 753 could just run the 12 woofers (6 in center ch, 3 each l and r). It's a high damping-factor (>150) type amp, so its well suited for this; in fact the improvement in low bass over the 1.0's is quite obvious: I was surprised by it. Then the four ribbons would each be driven by a channel from the matched pair of M-1.0ts that I have sitting here doing nothing. (I say "matched" because they are both the same variant of the M-1.0t; the earlier, "inverting" type, which has a different input sensitivity, for one thing).
Sounds simple enough, but wait. First, electronic crossovers are needed. There is a local company here in Rochester (Marchand - Google it) that will sell kit-form two-way units, any frequency you want, for $25 a channel, BYO power supply. 24 dB/octave; high-grade parts. I'd need three of those, and some advice on the selection of the best cutoff frequency; then balance it up.
OK, but what about the ribbon peak (is it 6 kHz in the Silvers? or 7k?)? Need to add the right notch filter there, or get Marchand to do it. What about the Gundry dip that was built into most of Bob's crossovers? How to phase the woofers; straight up with the ribbons, or inverted, the way the factory did it early on? How to wire the woofers? I think by themselves they measure about one Ohm or less on a DC meter. Three in parallel, the way they are now, with no passive-crossover components in series - what impedance is that amp looking at? And the center channel has six! Even now, I run the two center Silvers in series.
So you see, I have more questions as answers. No doubt somewhere, somebody has already gone through this. Any advice they could give would be welcome, even if it's "forget it".