Regarding Koni and my chassisno, the answer is:
Sorry, these will not fit your chassis number I am afraid. We have no damper options that will fit your vehicle.
If you have any further queries please let me know.
So then I had to search for other solutions:
Price offering from Intrax in UK:
ALF5522-RSA 33 Full race RSA, height and damping adjustable 1983 - 1994 € 2.250,00
ALF5522-1K2 33 Full race 1K2, height and damping adjustable 1983 - 1994 € 2.800,00
RSA and 1K2 intern complete set € 1.000,00
RSA and 1K2 intern complete set € 400,00
Sellholm Tuning AB in Sweden can convert Bilstein to my car, and I got an offer for approx € 2000,- for front + € 450,- for adjustment and approx €1400,- for the back set.
Another supplier in Sweden can convert my damper by KONI for approx € 2000,-
They can also convert a set of Öhlinare complete with springs for approx € 3400,-
But then I have to send my set to Sweden....
In other words – there are solutions, but they cost……! Keep in mind that I paid just € 2000,- for the car and had an idea about holding the cost down, all the time this is my first project…