For you it would be best to wrote to official representatives of Clubs, at least to Slovak and Czech club. They might have these information. Maybe not weight but height for sure.
You can find results of bonitations from last three years from Slovakia here:
http://csv.sk/chov/vysledky-bonitacie
I found one female whit 68 cm - Belis Karpatska svorka
http://www.wolfdog.org/site/sk/dbase/d/12909
Few dogs are 71 for example Agathon Wolf Rhoderick Sodar
http://www.wolfdog.org/site/sk/dbase/d/8863 and Badri z Devinskej
My WD has 67 cm and 38,5 kg. And he is not fat. I know few females which are 66 cm. But I don't know their weight.
But as others said, for sure those are not Czechoslovakian wolfdogs (vlcaks). At least one of them look like North american wolf or its cross. And second look more like some cross. But I think that one of its parents was wolf.