Earlier we had a Leman Russ (Daemonic) rules sheet running around, and I can tell you that my digging found their origin is from a Russian Gage site. In fact there were three Primarch Sheets, although I only have been able to dig up two of them from various places.
Here they are.... Just remember that these are just for fun today. Not real.
The one I could not find was Sanguinius, even though I was told it was also there.
