Building custom crossover for Apogee Diva

anyone have experience with this? Looking for someone who can follow schematics and build for me...
Maybe Marchand? Albert Porter might want to jump in on this one.
Are you looking to build a completely new crossover, or just replace the parts in the existing crossover with better ones?

If the latter, that is very easy. If the former I have to ask - why?
Go to apogee acoustics site from Australia. He is the expert on Apogees. He has 2 approved repair spots in US. A good friend just had the center in Virginia do a complete upgrade on his.
thanks round!