TBH I would avoid replicas especially LMs, personally i'd save or steal the money and get real ones.
Back to the question in hand, I had always fancied LMs but was disappointed when i saw them in the flesh, I think the look small and you really have to have the car low, for them to look right, at which point I don't think they would suit yours on a 30mm drop
In terms of cheap rims, i think you're really looking at replicas, which again are going to be heavier than the real thing, unless you can find some geniune rims going cheap on flea bay.
In terms of alternatives R32s (MKIV or MKV) or A4s
but if i was you i'd wait for the gun metal RCs