Automatic aerial which fits front fender

[HolgerS]

My Sprints aerial was already out of order when I bought the car. Finally I want to replace it before using the Sprint for a vacation in Belgium where I expect to ride it 2000 miles in 2 weeks. I thought an automatic aerial would be a nice thing so I investigated the possibilities. First idea was to install one of the Hirschmann aerials but these are only adjustable from 0-38 degrees installation angle. Seems that is not enough when I look at my Sprint ones which should be about 50 degrees in place. Any ideas where to get a quality build automatic aerial which fits the Dolomite wing?