I think it’s a cultural difference with there not being any line breeding or inbreeding here
There is not a lot doing it anywhere. I'm sure they are around. It takes tons of Hard work, commitment, money, and a lifetime to do it right.
IMO. The guys you are looking for are not going to talk to you, or help you much when all you want is to cross unproven dogs into dogs they have dedicated their life to create. They know it takes a LONG LONG time to breed out the bad, or breed in the good traits you want.
Not trying to discourage you in anyway. Just may rethink how to get to your goal.
You seem to be working hard at it.
Good luck.....You have the obsession!