For £28k I would want it to be in better condition, it does look like there are signs of rust and the whole engine bay looks pretty messy.For what it will cost you definitely get an independent inspection done before you hand over any money. Its a private sale so there wont be any guarantee on it.Be cautious as its a lot of money to spend and you need to be 100% certain its worth it. Best of luck.Please let us know how you get on.