@Gawain I'm really happy to hear of your outcome. Now your daughter has another world of options in her life that she didn't have before. You've also helped out the few of us in similar boats. I can't thank you enough for continuing to document your journey.
Relating your experience at the interview to what I might go through in the future, I think everything will be very similar except for the fact that my ex wife listed her current husband as the father on the birth certificate. That could totally wreck my chances of doing the CRBA, unless they accept the DNA test we did as a trump over what her mother listed on the birth certificate.