My Mum went skydiving last week, and at the site was a Russian plane, either of the aforementioned, that was fully running!!! Still ahd all original markings too!!!
You did not say where your Mom was at. In the US they put out a number of new built Yaks based on one that was recovered. They also race several at the Reno Air Races.
Also, I believe a Russian company started up one of the old production lines a few years back, making a limited run of "authentic" Yaks.
