@fskimospy asks if you're sufficiently well-stocked on adult diapers before he invests in Kimberly-Clark, makers of Depends.
For argument's sake, let's say Forbes is right that DJT is worth just north of $2B. He's got at least part ownership of several valuable properties. So chances are he can sell off one of them and pay off this civil fine, if it ultimately comes to that. Nobody really expects him to die a pauper. He'll just continue to grift off of senior citizens to pay his legal bills. The Presidency is obviously his only get out of jail free card.
OTOH his actual businesses are terrible money losers, even by his crooked tax filing standards. He won't get a whole lot for the golf courses in a fire sale, and you're almost doing him a favor buying some of those off of him.
But first things first, there will be appeals for a long time yet. It's far from guaranteed he'll ever pay a $355M fine.