Hallo Wilhelm,
willkommen im Forum!
Good to hear the Heidenaus work for you, I hadn't thought they would fit in A7/A10 front mudguards. So now we know that they do! At least with the touring version that is.
Great bike you have there, good luck with it. You'll find all the help and information you'll ever need in this place.
Viele Grüße aus Österreich, Markus