Question about rust?

[Austoon]

A guy here is sellin this 1992 MAZDA MX3 GS, v6, 5 Speed, Manual PW, Cruise, Kenwood CD Player, Remote Car Starter, extra (4) Michelin winter tires on steel rims. Moon Roof, 163k. for $3500 or O.B.O

BUT i talked to him before and he sent me pic's of the car and told me their were acouple spots that had rust on them or rust was starting to form...(he also sent me pic's of the spots that i can post if needed)

I was just wondering if it cost alot to get rust spots fixed? can just the alittle spots be fixed or does it gotta be like all redone (ie. the whole car would need repainted and crap like that once the body work was done?)

[fry_81]

it really depends where the rust sports are and how bad the rust is. if its rusted right through the metal, then you gotta cut out that piece and weld in a new one. sometimes if its just on the surface you can grind it off and paint over it that way. but if you want it to look best, ya you should get the whole car repainted after the bodywork.