Thanks everyone! I figured it's going to be nearly impossible to ID this one, have a feeling it's not even a Bllra. Here in Hawai'i there are a handful of main orchid suppliers, so I think I'll start browsing their websites and possibly reaching out.
The orchid has been thriving for years, so there's no rush to ID it, but my curiosity is strong!
Edit: Just after posting this I found the exact match thanks to a Google reverse image search. Onc. Speckled Spire "Whisp" !