what are the cheapest coilovers or lowering kit for the S2 avant??

[R31LLY]

hi all
ive seen loads of lowering kits for the audi 80 avant but my mates audi 80 tdi avant has different rear suspension to the s2, which leaves it hard to find coilovers with out paying out a fortune. i can find coupe but it seems they state not for avant on :-(

i was wondering if any one on here knows of any kits for up to £600 or if they know another cars suspension that fits the s2

thanks in advance Reilly