Hello Rich , the easiest way is: have a look in the phonebook of Schopfheim.
Use this URL " http://www.telefonbuch.dehttp://www.telefonbuch.de " enter the name "Fuchs" in the "Name/Suchwort" field and enter "Schopfheim" in the "Ort" field. You'll find some phone numbers, there are still members of the Fuchs family there. Call the people of the list you'll get , maybe one of them can help you. It will be good if you can speak German but the most of the younger people speaks English too.
This Fuchs family isn't related with me, my roots are in Horrenberg a town the area of Heidelberg.