Springs for my RX

[[HTi]Savage]

Hey everyone. So iam looking to lower my 89 RX a little. Iam wondering what kind of springs I should use. I'd rather get shorter springs w diff rates then cut my stock ones! Anybody have any ideas what car I could get springs off of?

[The Dude Abides]

front wheels are easy, rears are hard unless you buy generic eibach springs