I am looking to pick up a set of 04 coupe sport springs to put on my 04 base sedan. I've done some searches but haven't been able to find information specific to this exact setup. A few questions:

From what I've read so far, it seems the 05 coupe sport springs were changed/upgraded - is this true, and if so how do they differ from the 04 sport coupe springs I'm looking to buy?

The sedan FAQ says coupe springs will drop the car .5" - this is correct, right? (this setup I'm looking to buy will do this)?

Are there any gap issues/disparities between front and rear on the sedan with these springs? I see a lot of people running coupe/350z combos, would the 04 sport springs deliver a pretty even drop?

And finally, what shocks should I be looking to combine with these (I know I have to upgrade my stock non-sport ones) - is there a big difference between sedan sport shocks, coupe sport shocks, and 350z shocks? Which set do you guys recommend for my setup (04 sedan with 04 coupe sport springs)?

Thanks in advance for any help