I agree Backhoe, that ideally, and for the best you should get colostrum in them ASAP. I do know of 2 animals that never had colostrum, for at least 36 hours, a bull calf and a heifer, the bull became a steer and lived to be 1300 lbs, and hamburger steaks and roasts before succumbing to the "inevitable" death of not having colostrum before 24 hours.
The heifer had her 5th calf last year.
As far as getting rid of this heifer,,, why? As usual, I agree with Dun, the hormones and the new experience tend to make some of them a challenge, but they usually get with the program after that. NY... try to emulate your neighbor. I think you did the right things here. Get them together and if the heifer is not trying to knock the calf into the middle of next week, things usually work out.