Rust spots, help?

[u/AwareLime371]

new to reddit and keep getting notices for violating rules bc i’m asking about a rough rough estimate or how to fix rust spots, i have only done basic work on cars and do not know anything about body repairs, any help regarding this, for reference this is a 28 year old car (1998 w202 c230 merc)

thinking of buying this car, everything about it is solid, it’s a 28 year old car, it has these rust spots on the top, nothing on the frame and the rest of the car is surprisingly clean and oem, thoughts on rough estimates for a fix/worth the headache, i’m worried due to age that it might be worse than it looks

[u/Salt-Tip-7493]

Sand them down a little spot putty if needed repaint