It's clear that you've done your homework, and I'd LOVE to hear your system some time. I've heard the Tabus with a Classe integrated, but not the Manis. The Tabus were QUITE impressive, and the Manis are said to be even better.
Thanks for sharing your excellent system.
FOOTNOTE-->OPTIONAL READING: Another amp/preamp line to POSSIBLY consider (in addition to the excellent choices you've already listed) might be the Odyssey Extreme Monoblocks and Tempest Extreme Preamp. Lots of power at 200 to 300 wpc and tons of current with 180,000 microfarads of capacitance per channel (total 360,000). It's just a thought, nothing more. You may disagree.