Your daughter is way ahead of your thinking. You buy her Camaro, she gets the new car ( which is obviously a great everyday driver ). She gets free storage and visiting rights to the car, later when you no longer play with toys, she will be at the garage door waiting for the keys. She knows you will not sell it and maintenance will be kept up. Win, win for your daughter.
My son and daughter have no interest in my cars. Its the computer age with I phones and cars that nearly drive them selves. My old Corvettes and GTOs will be in storage and probably sold cheap at the estate sale. Not because fuelies, big blocks, split windows, and Goats will be valuable , they will become the Model A's of the future. The trend to living in condos with one car garages eliminates future wrench twisters. Technology is a good thing but not for our hobby.
Buy the wood and save the marriage. Divorces are very expensive I am told. Loan your daughter the down payment. Insist she keeps the 67.