Hey funandgames.
Are you going passive or active?
I mean you seem to be listening to to many opions on this forum.
you say you have 1 amp & you wont buy another amp!
I think passive is a better choice for your needs.
If you want a good to great comp set then you may want to drive the 1.5 hour drive to just to compare what might sound good to your ears.
There really isn't such thing as the best, it's more like taste.
Focal,Hertz,Rainbow,Helix,Morel,Dynaudio,Hybrid audio,Image Dynamics,SEAS,Scan Speak,etc..., make good to great comp sets.
They also make raw drivers.
Dayton,Aurum Cantus,SB Acoustics,SEAS, Scan Speak,Mark audio,H-Audio,Morel,Dynaudio,Audax,Jantzen,Vifa,HiVi,Usher,Tangband,Aura,Silver flute,ETON, Lpg,etc...., the list goes on & on.
RAW drivers that can soun just as good premade factory comp set.
The most important part of installing car speakers in a car is Placement,Deadening,Aiming,Tuning,& knowing what you like.