I've only just looked at this thread and looking at the pictures of the wheels I'd not bother getting them fixed. I'd shoe them in winter tyres and look at buying a set of r20s for the spring. The Ghibli looks a lot better on the larger diameter wheels.
Have to agree with that, Ghiblis look like a completely differen car on big rims. Unfortunately, having costed some up myself, they aren't cheap!
I hate to say it, but I find that the vast majority of second hand car sales outlets will just look to shift a car on as quickly as they have acquired it, whilst being quite comfortable telling you that "it's a minter", "it's never had a fault", "it drives beautifully", etc. I could spill some horror stories from one or two specialists (and dealerships) that are often exhalted on here but I will keep my counsel!
It wouldn't surprise me if that Ghibli had decent tyres on it not so long ago and someone swapped them over for borderline ones - I've seen that once or twice too!
On the part-ex side, a 7K markup is not abnormal. A canny buyer will probably haggle 3-4K off the price on the windscreen price so really it's more like a 3-4K markup.
It's not a personal dig, but I'm suprised so many people part-ex because the buying prices are usually pretty poor. I hate the hassle of trying to sell a car privately, but I'm not prepared to lose 4-5K on a car deal. That's a lot of savings!
Anyway, hope the car is a good runner, the issues seem mainly (wholly?) to be cosmetic ones and the tyres would probably need sorting at some point down the line anyway.