Procuro a dublagem em INGLÊS de The Return of the North Wind (1994) — gravada em Montreal

Hello everyone! For over 20 years I have been looking for the English versions of two Basque-Spanish animated films that were my childhood favorites: The Legend of the North Wind (1992) and its sequel The Return of the North Wind (1994).
The good news: I finally found the English dub of the first film (it's on YouTube, in poor quality, but complete).
What I'm still looking for: the English dub of the SEQUEL, The Return of the North Wind. The film was completed and its English version premiered at Houston's WorldFest in 1995, distributed by Nelvana — but no copies ever appeared online. Only the Italian, Spanish and Basque versions are circulating (I found an Italian VHS, "Il Ritorno del Vento del Nord", but it's not the audio I'm looking for).
What I've already done:

• The English dubs were recorded in Montreal, at Double Vue studio (NB) Inc. (now closed, went bankrupt in the mid-90s), under the direction of Thor Bishopric, with whom I have already spoken. The final mix was made in Spain.
  
• I contacted part of the Montreal cast, Nelvana/Corus, EiTB, the Basque Film Library, Filmax and director Maite Ruiz de Austri.
  

My question:

• Does anyone have, or know anyone who does, a copy of the English version of the sequel? (VHS, DVD, TV recording, anything.)
  
• Any clues as to where the Nelvana-era masters or the Double Vue studio materials might have ended up?
  

This movie was my biggest favorite when I was a kid, and seeing the first one again after so many years was so moving. I'd love to complete the pair. Any help would mean immense. Thank you so much! ?