MFusick: It seems to me that you like overkill, so this might be right up your alley.
I wanted to build a pair of line arrays after reading about the IDS25, but didn't want to spend a lot of $.
I wanted something that was easy to design and build and also didn't want to have to learn how to build crossovers for my 1st speaker build so I built a pair of mains with 42 of these drivers per 7' 6" line.
The boxes are 5"wide x 12" deep x 95.5" high for them with a 1/7" wide x 1" deep x 94" tall slot port tuned to about 100hz.
They came out to ~$200 per speaker
I am going to measure them and will put up a build thread whenever I do, but have been enjoying them too much for the last year to bother with moving them.
They sound amazing to me with each on it's own channel of a ep4000 @6ohm and will play LOUD and clean but need dsp with about 10db of boost at 100hz and 20Khz to sound right. I'm kinda disappointed with what audyssey did with them hooked up to my receiver, but they need way more than a little tweak.
Here is a full height main with one of my prototypes with 12 speakers next to it, I will eventually be using 4 of the little arrays as surrounds and 3 big arrays for the front.
Here is a close up showing how I routed the top and bottom mounting flanges off the speakers to get closer CTC spacing.
The only problem I have with them is that they need a dozen subs to keep up with them.
I think Rick at Selah is THE guy if you want a kit or something designed.
Hope they are
enough to put in your thread.