It might make you a good planter but isn't much good for anything else. As a rule of thumb, the cost of upgrading a car from one class to another is usually twice the price difference between the two classes, and the interclass relationship is expositional. Going from a class 2 to a class 1 is merely astronomical. As far as class 0 is concerned, figure what it would cost to manufacture the car by hand and triple it. The maximum increase in value after restoration equals one half the money invested.
Labor invested is worth zero at selling time.
The only way to make a profit in restoration is to restore other people's cars.