They'll achieve £50mill no problem, probably around the £60mill mark IMO, just remains to be seen if it is this season or next
If they get rid of bale, vertonghen & AVB they'll need to rebuild heavily but will have a lot of cash to spend sorting their problems out! They could sign 5 or 6 very good players with that money but it might put em back a season as it will take time for them to gel