They are between zone 4a & 4b. The area is way colder then Ottawa or Montreal!
I sent them an email to see if they are still in business. Their farm is advertised as a tourist destination in their area.
A few trivial facts from their television interview:
In the video they said their electricity bill is expensive to keep the greenhouse warm. The temperature is kept at 50 F during winter. One day they "cooked up" the fig plants by forgetting to open the curtains of the greenhouse. Their experiment started in 1999 and they kept trying by error and trial.
Myself, I keep my dormant figs at an average of 37 F. I am sure they could save on the electricity bill by lowering the temperature during dormancy. Also, the idea of the Bulgarian gentlemen could help them out with a homemade geo-thermal setting. These are my small suggestions but they are entirely based what they said in the video. In addition, it was made in 2004 so many things could have changed since.
I have no idea if they know anything about figs4fun and others but I will find out! Who knows there might be potentially interesting cutting trades.