I know you are just jesting but "budget pr?visionnel" has a purposeful meaning. It is not a binding budget but just what you expect it to be. Then, if you happen to chance on a 222 millions euros purchase of a brazilian, you have just to give the necessary documents proving you have the money to carry on. Nothing difficult for QSI.
I know people don't know how DNCG works and they took L'Equipe article as face value when it said PSG HAS TO sell for 180 millions. It is just what PSG wanted or expected to do. If they don't sell for that much, the owner will just have to fork more money to balance tha account.