The ebay set and the set from Miller's have a number of more general items that would go to other models.
The set from Authentic Classics fits a 280 SL. I have purchased stickers from AC before and they were easy to use and have held up.
Here is another listing, with some detail about where the stickers are placed. They do not list a set on their site, but may have one available. If you scroll the price list, it shows some of the details of which models. I have bought individual labels from these folks too, and the quality is very good.
https://www.budsbenz.com/catalog/230-250-280-sl/aa-decals