Again, to be clear, the modded Pioneers are a thing of the past, but I wanted to explain that Dennis bought the Pioneers so you did not ship to him, so that cost was never in the equation.
Just to give you a little perspective on who Dennis is:
Philharmonic is his company (but you should use the term company loosely, because he is a retired guy who is not trying to build a business or make a living from this, rather it is his passion to share quality sound):
http://philharmonicaudio.com/
The reason he has a deep history in circles here is he has always been very helpful by publishing his designs for the DIY crowd:
http://murphyblaster.com/content.php?f=main.html
He also did the design work for most of Salk's speakers:
http://www.salksound.com/
As best as I figure he pays himself about $6/hour (if that) to build speakers/crossovers. Soldering crossovers over and over is my personal idea of Hell, but to each his own. If someone is building my crossover, I would want it to be him.
Consider his AA Monitor. It is the BR-1 kit from Parts Express that costs $180.
http://www.parts-express.com/dayton-audio-br-1-6-1-2-2-way-bookshelf-monitor-speaker-kit-pair--300-640
Dennis buys this kit (and he does get a discount for buying in volume, but Parts Express gets their cut), throws the crossovers in the trash, builds the 11 component crossovers he designed, assembles the speakers, tests them, then ships them to you for $195 plus actual cost of shipping (roughly $25). I think it is realistic to say he is the "Johnny Appleseed" of sound quality!
Note that you will find a design for a BR-1 crossover replacement on the Murphy Blaster site. This is a old design (as noted by the $125 list price for the BR-1 kit!) which he did with the DIY community in mind. The current design is more complex.