G300 (Puch 300?) – what do I have to pay attention to?

Love Community After a long time I am now focused on a W463 of the first row, specifically a G300 from the early 90s. My questions: – petrol or diesel? Especially in terms of robustness and durability. The two I have to offer would be gasoline. – What do I have to pay attention to next to the rust? – Special rust spots that I should note? Door Panel/Rides, under the rubber on the front window, interior under the carpet and threshold I have on the list So far – Is it a stupid idea to buy or become those 200t+ km that are still running. I’m already budgeting an engine revision, but I hope that I can easily put another 100t km on it. – Automat or hand switched? My personal preference is on automat, as it becomes a weekend vehicle – Come all with air conditioning (to choose from is a standard G and a GSE, but the difference is not quite clear to me)? – How do I get iPhone music on it if n Is there a CD changer in it? With a W460 with cassette you could have solved it with a cassette audio connection. Does anyone have a solution here? – Anything else that I need to consider? Thank you for your help!