OK-I could get banned from Brewer Fanatic after proposing this, but here goes:
Athletics get Peralta, Megill and Bauers
Brewers get Nick Kurtz and a mid or top-tier pitcher from their farm system. If I read correctly, Kurtz's salary is under Freddy's, but not by much. Think what it would be like to have a two-headed power combo at first base.
Waiting for the fallout... 😏