May be something in these pups to consider.
Alaska Dog and Puppy Rescue has 3 male, very black lab-ish looking pups 9-10 weeks old.
The also have a pregnant Golden Retriever about to give birth. She was surrendered to ADPR directly. No idea what the the father is. Of course its a crap shoot but with potentially half the DNA and training from the start .....http://www.akdogandpuppyrescue.com/