He'll likely get a nice scholly package due to his grades. Try to get him to earn at least 15 hours of AP/CC transfers. Is he interested in being a military officer? DOC youth leader? Are you DOC clergy? Does he play an instrument?
All of these can significantly reduce the overall price of TCU. Additionally, your (or wifes) employer may have a scholarship offer. He could get a job, and some employers offer tuition assistance, freeing up cash for other things.
Congrats. Tell him if he complains about parking, he will lose his car.