Nope, did you take it that way?
It's definately worth less, IMO, since it's been repainted. Any car that's been partially repainted is worth less, IMO, unless you have a painter with mad skills painthing your car. Even then, you're sure to have some type of defect, drip, run, etc etc in the paint. Even though Ford paint sux, you can almost never get a repaint that's better than a factory job.
Are you serious???? What kind of body shops have you gone to! I personally could paint the car better in my garage than how it came out of the factory. Do you think the factory wetsands the cars in between paint layers??? Since this is a Ford, do they even do more than one layer???
Sure if you get a 400 dollar paint job from maaco its going to have drips and look like ****. But if you take it to a real body shop and spend closer to 4 to 6k your going to get a much better than factory paint job.
If the body shop sands it down to bare metal, primes it, wetsands, primes, wetsands, paints, wetsands, paints, wetsands, paints, clearcoats, wet sands, clear coats, wet sands, like any decent shop would it will look 99x better than a factory paint job. Have you looked at your factory paint lately? Almost every mustang i've seen has a bad case of orange peel in the paint, hell go to the land of make believe subforum and check out that ranger that had a 2 foot section on the door that wasn't even painted from the factory.
Even if its partially repainted get them to sand the entire part that is faded. In this case the roof piece, and the amount of blending would be greatly reduced. 9 times out of 10 you wont be able to tell its been repainted... unless your painter grabs mystichrome paint and doesn't mix it at all... In which case you've clearly gone to some redneck body shop in which they normally use cans of spray paint on their cars.
I say buy it, for 5500 your still getting an 80,000 mile Cobra. On top of that your getting a mystichrome one. As if a 2000 silver mustang is going to pull up next to you and have anything negative to say.
I'd buy it for sure, i say offer 5000... less likely to refuse and its only 200 more than 4800.