Check the rear subframe too, good secondhand ones are hard to source now, a new one, if you can get one, is £350.00 ish for the part alone. The newer cars appear to suffer with corrosion on the RSF more so than the older ones.
Oh, the blue is Melina Blue, commonly referred to as 'Blurple'. I can't see why you would be bothered about it being Black, it takes some looking after but looks good when you do. Have owned mine for nearly 8 years now and can thoroughly recommend the colour.