And how exactly would Stefanovic have been supposed to buy Toyota's operation, then? Surely not with only a few euros.
Besides, we know for a fact that there is some kind of check done on teams to make sure that they're really serious (FIA sends inspectors), so even if Stefanovic had somehow tricked Toyota into letting him buy their team with his alleged non-money, the FIA would have probably uncovered the fraud and publicly announced that StefanF1 was not a considered entry as a new team, now or in the future.