Too bad you're not in the US, CD-3 is easily had here, and then I would send you a few acutely C-22 rolls you could test (and one I would like processed that's been sitting in my fridge... hehe).

I also don't see this question often, I see the reverse, film that's C-22 souped in C-41 and how to do that correctly, but not the other way around.