Oh, good - you have them for two more weeks - and I bet you could make some real progress within that time. Even just basics sound like it would be an improvement, and I am glad you have Derek's "firmer hand" because obviously, these poor pups need some boundaries - and not just those that constitute the garage walls.

Good luck, and keep us posted. YOU are not the failure here, their owners were, but you, at least, will care enough to help these wild babies!