With that price range, you should be able to get a good series 1 with some mods, such as exhaust, wheels, maybe cooler...Series 2 are a little more...they have nicer interior and another airbag if ur after safety...also series 1 don;t come with ABS as standard (i think), whereas ABS can be found in series 2 more often....any way good luck....
Oh also, one other thing......careful with Kms......Judge the car on its appearance...not the km reading