Hi matey, rust can be an issue, there 20yrs old now, inner wings etc, spares, still alot of tuners doing cossys so shouldn`t be a great problem, price depends on the car, etc condition, history, do you want a modified one, or standard..........whats your budget.........if poss take someone with you that knows the cars inside out.........tunning wise, i would go nowhere else other than NMS Karl is awesome at what he does, real nice guy aswell, and what i think is worth everything, he`s honest,