Hi Wind Chaser,
The hardest part of the build was the angled woofers. I recommend installing the woofers into the cutouts before assembling the final box. Otherwise, you can't reach the screws that are in the interior of the box. Danny actually said to use hex screws with a nut on these spots, so you can take them out in the future if you want to.
UPDATE
OK, I had some problems with both coax drivers. P Audio does a shitty packing job on them, just tossing them into a box with no padding. I ended up with one driver that had no midrange coming out of it (but the tweeter was fine), while the 2nd driver had a good midrange, but a broken tweeter. Talked with Danny and a new driver was sent out immediately. Here's the cool thing - the tweeter unit can be completely detached by simply unscrewing it from the back of the woofer. So, I was able to swap the good tweeter into the good midrange unit, so that when the new unit from Danny came, I had 2 fully working coax drivers. Nice!! I love modular construction

Here's the latest pics of the build:



LISTENING IMPRESSIONS
I've listened to these speakers in fully active mode using my DEQX 3.0 and in passive mode using Danny's crossover. In active mode, the tweeter is just too sensitive, at 105db, it makes my tweeter amp sound very noisy indeed when hooked up directly. If I "listen past" the noise, it sounds pretty good. But honestly, it's hard to listen past the noise.
Hooked up passively, but still using the DEQX in preamp-only mode, the noise is greatly attenuated and it's very hard to hear anything past 2 feet directly in front of the speaker. With the standard 30ohm Mills resistor across the tweeter terminals, the speaker is too bright for my tastes (note that I have a hard, reflective room), but with the 20ohm Mills resistor, it's just about perfect, tonally speaking.
Overall impressions so far:
1. OB bass is Da Bomb in difficult rooms like mine. I always had problems with uneven loading of my room with the Ella's, and that's pretty much gone now.
2. OB Midrange has much more air and space. You REALLY hear when people are speaking or singing in large acoustic spaces.
3. High Efficiency Drivers rock. They not only track tonal differences between different instruments better, they also have a much faster "settle time", so that things don't get confused on busy passages. They are even better than the SEAS Nextel drivers I'd been using previously (which are better than the Scan Speak drivers in this aspect).
4. These speakers are made for tubes. I hooked up my rather warm sounding audio-gd CS1 solid state amp for a bit, but really the V2's love tubes. And, since they are so efficient, you can get by with a moderately powered amp and they still will knock you on your butt. I have just a single hot-rodded Dynakit ST70 amp driving the mids/highs and the SA-1 sub amp on the bass woofers.