It all gets expensive that way. With prices on yahoo auctions add 10-20% japanese broker fee, Japanese domestic shipping, freight to Australia, then taxes etc. While OHLINS are a quality name and are well known, you should be more interested in finding out which specific coilovers are known to work really well with your car. Go for tried and tested solutions. I would recommend you look into TODA Fightex DA and Bilstein PSS9. DMS are excellent but not sure about honda applications.