New starter battery G 500 (2000 VorMopf)

Hello G-emeinde, after last week’s battery in my G fell, it is now time to replace them. Since the car ran in Japan until last year, a Korean battery is in it. It is not visible on this from when it is, nor any voltage technical data. My workshop still had a Varta Silver E3 with 95 Ah, which they gave me. This battery is unfortunately only 5 centimeters too long at the foot. Since it is a pre-mopf from 2000, it has the battery still installed in the left rear wheel box. There fits in max times one with 30 cm foot length. But all, which I have found so far, are larger. Who can recommend me a model with good performance and suitable dimensions? HG Syncla