Brake discs in which size (288 or 308 mm) – desperation

Good morning together, I hope someone can help me here ?? With my Ford Tourneo Custom Active 185 HP only approval 2021 the brakes have to be replaced at the front, brake discs and brake pads. Unfortunately, the next Ford workshop is a little further away and we only have one car, moreover it is really much more expensive at Ford, as if I had this done at a free workshop and the parts themselves. Now I am looking for the right brake discs. Above all, I seem to find the documents easily, but the brake discs drive me crazy. I called my Ford dealer, who sold the car to me and I have been given some data to which I can orient myself. But I am looking on the internet for suitable brake discs often the diameter 288 mm is displayed to me. According to my before dealer it would have to be 308 mm, if I take the reference OEM. Does anyone here know what I w How am I 100% sure that I need the 308 mm without removing the tire and somehow measuring it. If it is then the 308 mm really, it is unfortunately so that I will always be shown on every page on the internet. These are not compatible. It is often so that these are compatible for the variant up to 170 horsepower and 185 horsepowers are not listed. I would really be very happy about your help, because also To make some money here For example, I look at ATE, Brembo or Bosch Zimmermann or FEBI Billstein brake sets. The following data was given to me by Ford: Discs: 2171541 2168836? Flooring: 2391870 Wear indicator: 2511685 I have selected the following articles:https://www.ebay.de/itm/313022819976?… Orhttps://www.ebay.de/itm/402847577262?… Orhttps://www.ebay.de/itm/386823922387?… Ford meant to take originals or some from Bosch, maybe you have experience, you would see me r help. I would have the following combination from Bosch, but the discs are offered to me here in 288 mm https://www.autodoc.de/bosch/7884417https://www.autodoc.de/bosch/12791464#brake lining Zimmermann I also find some brake discs, as far as I have read they should be ok too? Thank you very much in advance.