Saab 900 Purchase advice

Hello everyone, I’m thinking about getting a Saab 900 as a convertible or a coupe – and everyday vehicle. I would have 5000 eur at my disposal and now I wonder if it is worth looking for a convertible at all. The more affordable alternative would be a turbo coupe, as far as I really appreciate it. What do you think about it? Furthermore, I would like to know how much one should plan for maintenance according to experience if one finds a car without repair jam. No one can tell you whether the turbo will fly around the ears next week or not – but you will be able to make a certain assessment. I read different things about spare parts prices here in the forum. I would like the car to be much more modern, new, but it would also have to be financed by me. I hope you can help me a little bit. I also looked around shconmal at Mobile and a few vehicles on the parking space. e.g.: cabriohttp://suche.mobile.de/…/details.html?id=57159269&%3Borigin=PARKhttp://suche.mobile.de/…/details.html?… (is that an automatic selector lever on the 3rd photo? )http://suche.mobile.de/…/details.html?id=57348969&%3Borigin=PARK coupehttp://suche.mobile.de/…/details.html?id=63886759&%3Borigin=PARK thanks Moritz