Dead simple buy a 3dr for £11k and see what you get - spend £15k and you have a mildly tuned car or std but honest miles - around £20k your getting a nice little motor either very well spec'd or std with low miles and excellent parts.
For said 3dr £11k in my eyes has got the new owner a heap of forthcoming work, check out the inner wing on the n/s and the strut housing on the o/s