Is your car a singapore model or japanese?? The singapore model has a longer shock and spring than the japanese model. If you are a singapore model by just replacing the shock and spring to japanese will lower the car. the bottom line is stick to japanese. LOL
hmm well my advice on it is the tien/ eibach or H&R gives u a bout a 1 1/2 drop with good improved handling , but close to stock ride. If you want a seriously low ride but with the Intrax Progressive Springs its 2 1/2 drop, the car looks low but with a surprisingly good ride and handling. I can get the H&R for $2300 and the Intrax for $2600.00.
In terms of shocks u can go the Tokico HPs a set can run u short of $4400.00 OR you can get locally the KYB Excel-G they are pretty cheap around $650 for one but its a pure gas which is good, a pure gas and the performance springs and u should be fine.

We personally have the Tokico HPs on our 2001 Familia BJ wagon RS and i will admit its one of the best struts i have felt gives u confidence to run the car at top end.
PM me for more details.