check this BAT auction out, AND these are 40's!! the 46's are much harder to come across so you've got something special there. you might want to consider rebuilding them, cleaning them up, and getting them shinny for top,
TOP dollar.
http://forums.pelicanparts.com/porsche-marketplace-discussion/1101682-bat-parts.html
do a classified search if you've not already to see what they have gone for, and if you find few adds better yet.
as they sit i'd think north of $6k, at least.