The prices dont seem so bad, i know pedders were charging around $800 to fit their own lowering springs on the atara models. Maybe The Tyre Factory? I'm planning on getting my suspension done thru this guy - Rob - https://www.facebook.com/pages/The-suspension-centre/201515815448 - It sounds like he knows what hes on about and has really good feedback on other forums. Ive also dealt with these guys recently who seem ok too - http://redlinesuspension.com.au/