Here's what's going to happen
you pay 150k to the guy and get the animals , but the cows mustn't have cost him 100k

so he's getting around 50k from this deal.
you guys think you save the lives of innocent cows by paying 150k for a useless chunk of meat
and the owner of the slaughter house , he use the 150k to buy few more cows.....
the story goes on , at the end of the day you haven't really saved anything cz what was bought by you have been bought back by the owner
lemme give you a better suggestion , spend that money on an elder's home or on a children's home. that's a better way to spend your money.
help a fellow human without spending the money on something which is of no use
at the end of the day
whose life is worth more cows , buffaloes or human ??
think about it ............