Hello dear forum members, I have the option ne tt 600 quite cheap to buy with only 6000 km. Only I have no direct insider information about this model and wanted to ask if I can give me tt 600 expert a few tips. e.g. which small stacks this model has, what you have to pay attention to. what it looks like with spare parts procurement etc. or which parts are reperaturous or need to be replaced more often many thanks already in advance. Lg dom