5k is MK5 terrortory 
Not one as quick as Toby, for example? Right?
No but its a better base for modding IMO and it drives well in standard form
Dont see the point in buying something 'ready done' unless you have the exact same taste as the person whose car you are buying but even then you'll be changing bits etc
Id either buy a really clean, unmodified example of a MK4 or get something that drives better out of the box in the form of a MK5.
After having owned a MK4 I know exactly what Id buy............