Is it for a Syrian or a dwarf hamster? If it's for a dwarf the height isn't so important. I know what you mean it was about £45 for the Ted which I balked at. It's actually being sold for £35 on Amazon Uk - would that be an option? Or would the postage make it just the same price as in Germany? I think it's a really nice cage. There's not much in it between the kios and the Ted. The Ted is 67cm by 45cm and the Kios is 70cm by 47cm (but the base slopes in a lot on it). The Ted is 35cm tall (max - more like 33cm internally) and the Kios 28cm tall.
https://www.amazon.co.uk/Skyline-Ted...ds=skyline+ted
I don't know if the Duna multy is sold in Germany or not - it is slightly bigger than the Ted, but a bit lower I think.