I do understand what your saying, resale RED and all but...
I still think that this is the way for him to go....Take pictures of the repaint to show it was done properly. Taking it down to bare metal is more work no doubt but, the end results are much better and like I mentioned, at least he knows and the perspective new owner knows what's underneath the new paint that he spent a fair amount of money on. It's time more than cost, the difference in cost is minimal considering the result difference...Plus factoring into the equation, all the experience he's going to get.
Even if he wants to sell it...In my opinion...it is the best and surest way to get the value of the car back when it's for sale.
Your right with respect to the hood struts and pins and bushings for the doors etc...and when doing a car for resale costs are very important and a budget should be put in place...I couldn't agree more in that regard.
Post picks of your Black Camaro, love to see them.