Might be worth trying to get as big a fee as possible and buy Ceballos with the money. Need a player like Ceballos more than one like Torreira long term with Guendouzi being better suited as a 6. In an ideal world could get rid of Xhaka and let Maitland-Niles and Bielik back up Guendouzi and Ceballos but that’s not gonna happen.
Still, should really try for Ceballos, as it looks like Madrid really is in for my boy Fabián Ruiz (insert that bit about superior football scouting knowledge amirite @Midfield_Maestro ?? 
) and he’s in a situation where he should welcome a move to a shitehouse like Arsenal in order to get continuity and show his talent.
Plus he’s got epic racist/franquista tweets as a 16 yr old. “In my neighborhood you didn’t have to score a hat trick to bring home the game ball, it was enough to be a gypsy.” Never forget that jewel.