Yes there is, there is the bay opposite the Body Join, and also 4 (I think?) Flight Line Hangars/extra bays.
It seems though the space where the pieces are waiting for the Body Join isn't part of all these..
I suppose the point I was making was that 'joined' frames would just be parked somewhere and not worked on. So would Airbus just keep ferrying and body-joining frames if they can't carry straight into FAL.
Will have to see if the Emirates frame on Convoy 1 of 2014 finds a spot in FAL