What color B6 do you have? I have a pair of royal maroon fenders in amazing shape. All original paint and NO dents. Plus most of your list. But I need to know what you’re looking to achieve, if you don’t mind me asking...?
Here are a couple photos of mine I had in my phone. These are as found pics. I took a handful of investigating/more detailed photos but unable to find the file offhand. Under the badge, there was a #6 stamped into the headtube.