Pictures looks nice and I suspect £4k isn't a ridiculous asking price, looking at similar cars offered for sale elsewhere.
I'm also not trying to negotiate a sale, being very happy with my v6 Freelander (which does about 25mpg), but I suppose the questions which would suggest themselves to me would be: What do you mean by "some very good service history"? How many previous owners? How long have you had it and why is it for sale?
If the answers are encouraging then I reckon this one might not stick around too long.