I don't think the model you propose will work, but I have something similar using live as XTC-host (PCI) and running XITE as a standalone (no ASIO drivers running) environment, connecting the two with ADAT. It kinda worked, but Live kept on crashing.
I never could figure out if live was the problem or Scope running in XTC-mode.
However, I do believe that if you can get a stable XTC-environment up and running on either the PCI-cards or the XITE and then route the XTC output to your SCOPE-standalone system it will work nicely
Please let me know if you get it working
