ebay you can pick a set of replicas up for 500 with tyres. Although i would recomend spending a little more on the tyres. Elite who are a very raputable tyre emporium down in the south are doing these for 540 and if you want to add falkens to its an extra 60. so your looking at 600 delivered with half descent tyres. Remember most of the ebay ones come with chinese unknown brands, not worth risking your life on it.
but be aware the replicas are lower quality than the OEM wheels, so not sure how long the finish lasts etc.
Alloy Wheel: Collection 270 (MINI Fitment)