Tips or advice needed to buy new 50s scooter – Recommendations ?

Good evening, I need a little help regarding a new purchase of a small 50’s scooter. Since, it seems to me, many users are here with expertise, and I have hardly any idea of the topic, I hope to be able to get here tips or recommendations for a new purchase. I am looking for a small 50’s scooter, which must be very reliable. The vehicle is driven daily about 15 to 20km. Sometimes longer distances (8-9 km) but also shorter paths (1-2 km). Important: I have hardly any idea of the technology myself, so if necessary maintenance / repairs depend on the only workshop available on site for such vehicles. This is not a dealer for motor vehicles but only a dealer mainly specialized in bicycles, who also offers scooter service in the workshop. So it should become a vehicle with which also a simple operation can be managed, especially what this procures. In addition, it is planned to use the vehicle also 10 years or more. I think that a brand car (such as Piaggio etc.) would be more useful, no special offer from the hardware store for example. In addition, I ask myself further questions: 2-stroke or rather 4-stroke model ? prefer disc or drum brakes (also with regard to maintenance/tausch) The appearance should not be too lifted (so no zig colorful stickers etc.) but rather neutral. ss an existing top case can be mounted. Therefore, the holder should be available/available. Budget is approx. 2000-2500 Euro, if what is extremely good also costs almost 3000 Euro, this would be possible. I hope that a suitable vehicle can be found. If there are further questions, just ask.