I always figure double the price for shells. Plus 20% tip. It's been over 25 years since I have been. I think the entire trip was just under 5k. It was almost a even split of the service to shells.
The bird boys got a penny a bird. Food and wine and lodge was outstanding. I know we used a local Argentina Rancher That was an outfitter for Dove/duck shooting which is no longer in service Ponchos' Argentina Safaris. Been thinking of going again it's unbelievable shooting. And yes you'll have a bruised shoulder and cheek.