agree with above, its over priced for the list of things he says needs replacing. If it was cost effective then he should fix it himself and sell it for 8 or so, but its not. After everything is done that's what the car will stand you I reckon and I think the guy knows it.
If the price was right then it'd be worth it but not for 5 grand plus upto 2 grand on parts and labour not including spraying.