Jeez there are some cynics on here!!
You buy on ebay without viewing because when you go to collect the car, if it is not exactly as described, you walk away! Simples!
Most of us except that £4k cars will need some "fettling" to get just right, that's part and parcel of the 2nd hand car buying game surely, but rxe, you really are looking at the very worse case scenario, clutch at 72k miles is very very unlikely, and discs and pads for £500, what are they solid gold!!!!!
And, hey, you never know, he might actually need to get rid of it because he needs an estate car for work, you never know
Just go into the transaction with your eyes wide open, realising the car will not be perfect, assess the money that needs spending and then make a decision. Like any car buying, this is no different.
Edit, hey Clive, we are in agreement!!!