We have a gsdxcollie bitch that was accidentally covered by my bed/grey x grew/wpt. She had 8 pups, 7 I gave to mates & have one here. It was a variable litter ranging from almost pure looking gsd to a 27inch bitch that looks suluki x. They are all working, are good family dogs, good guard dogs & the owners are all pleased with them.
I used to have a gsd/grey x dh & she was the best fox dog I have ever had.
Good luck with the pups, I hope they go to genuine working homes with people who know how to work there dogs.