I’m looking for a convertible

Hello, I am looking for a very special car on behalf of you. Unfortunately, I did not get along with the search, so I am now looking for help to you. A fun cabrio is wanted clearly under 10 T€ with quite simple and above all reliable technology. Also a really rustic sport cabrio in everyday condition. The car should be driven as a fourth vehicle by a beginner in terms of oldtimer / youngtimer. I hope that the “conditions” are not too are realistic and you can continue to help me. Greetings Stefan