I think hers are titanium. But no, there's 26 on them and 4 plates. All stay put.
On one hand, I want to warn you based on my experience and bad habits of having more than 1 project car. On the other, I know you and I are the same age. Lord willing, we'll have many years of car building ahead. But these cars in project shape are getting fewer and fewer.
If you can afford it and want it, I'd go for it. And I love the concept you described about it being a "waste of money". If I had a penny for every time I've heard that about my project cars, especially the polara, including by other car guys/gals, I'd have more money than Elon Musk. There's far worse ways to "waste money".