Those are West German Show lines, so you won't find any sables there.
Have you tried contacting your nearest Schutzhund club and ask for recommendations?
And working lines will typically go for 1000 to 2000 dollars, prices somewhere in between being the average.
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Keeta BH, OB1, TR1, AD
Rottweiler/Hairy Dog mix?? 2004-2015