IMO whole car paint job is restored. Original paint is only original paint once, rust/panel repairs are ok. That’s why original cars are worth more, trying to find a 40+ year old car with great original paint is often very difficult, and no possible hidden rust etc.
Mechanical items are wear and tear items, as long as numbers match its original.
Only really matters if it’s a concern to the buyer when you sell. Otherwise do what you want to your car and enjoy!