It wouldn't be so hard if you didn't have all those speakers.
Do you have a link for the Testarossa kit? I was curious to see its crossover schematic, but couldn't find the kit at Meniscus audio.
There's only 10 pairs of speakers (2 unassembled), 5 subwoofers, 8 amplifiers, 1 processor, 1 receiver, 2 BD players, 2-64" TV's, 1-46" TV, projector, screen and assorted other electronics. Plus racks, stands, and a couple miles of speaker wire. Plus.........you know.......all our other stuff.
I can shoot you the schematic via e-mail. None of the RAAL 70-20XR kits that Jeff has done for Meniscus are on the website. They are inquiry only right now. There's the TMM floorstanding (Testarossa), the TM (Auricle), and the MTM (Imperial). All with RAAL 70-20XR tweeters and Satori woofers and all two ways.