Probably not helpful but there used to be an american guy named Mike Swantak who could reproduce just about anything - did a nice custom job for me about a year ago. Slow but very good work.
Lats, I bought some decals off Greg at Cyclomondo via his ebay shop only about 2-3 weeks ago. I’ve been trying to get in touch with him directly over the last week via email but he has been slow to get back - given the other comment about his site being down until April I’m guessing he’s taking a holiday for a couple of weeks.
I understand he’s still around and in business though as he was due to see the guy I’m getting a frame painted by last Friday.