Well the front indicators being the wrong way round isnt something to worry over, palmergeddon's 93 s4 also has them that way round for some reason..maybe the very first few did? Side marker lights...maybe fitted if the car was a promo one, due to use abroad? Brakes will be down to either lack of use, as mentioned, or as they will be the delco system they would probably need work on them to get the system back functioning as it should...not difficult or expensive, but a common problem ive tackled a few times now.. Also, in the service file when was the last major service? Regardless of its mileage, if its 3 years or more its overdue and you should be negotiating a drop in price based on it...most thorough specialists will take a grand off you for it...its not just a cam belt...waterpump rebuild everytime too along with all ancillary belts, and the usual fluids etc..