Chassis for everyday life in the W461 (short) searched

Hello all, I have a G-Class and I am looking for a comfortable chassis for the car. – gdt 290 – Built 1999 – short – W461 – Tyre 205 80 r 16 The vehicle was delivered with the rich 235 85 r16 and I will reassemble this size. The vehicle is mainly moved on paved roads. However, I may have to drive from time to time in deep snow and on poor dirt roads. However, the design of the chassis should be for the road. It should be possible. one, to drive far and not to get any problems. The car can come a little deeper with the new chassis. I also sometimes have to get into a parking garage etc. Is there a chassis that is recommended?