Kayaba AGX vs Koni Yellow, tein vs vogtland vs tanabe Options

[fallout]

Hi,

currently I've koni sport installed with eibach prokit, but I think that previous owner has cut front springs because drop is more than 1 inch. So, problem is that front konis are gone. Front struts are now gone, ride is bouncy, and on big potholes car makes big noise, like strut is hitting bumb stop.

So I'm planning on investing in new struts and new springs. Springs will be tein stechs or vogltland, maybe tanabe?.

So question is should I buy all four kayaba agx struts or just front koni yellow (current on my car are actually black ?!) and put them on new springs?

As always, money is very important, so new front koni struts are my first pick but i'm I don't want them gone again

All advices are appreciated

[fallout]

Croatian roads are bad so often I get loud bangs over potholes (i think shock is hitting bump stop).
Eibach pro-kit is currently on the car and was installed by previous owner, but ride is rough, bouncy, so I'm planning on installing new springs.

I would like something that is more comfortable but also lowered; I've found tanabe nf210 with near stock spring ratio, but I see everyone recommends tein s-techs but their spring rate is almost 40% bigger than stock.

Can someone who has tanabe or tein installed post their experience comparing to stock springs, because I've prokit to compare and they are bad (I think previous owner has cut springs some more to lower car).