According to the real news he doesn't have the money to pay Rudy's bill, which has put his former lawyer in a bind. Trump is well known to be a deadbeat, when it comes to paying for services. His current lawyers demanded payment in advance. That may have caused the large bills his campaign contributions were redirected to. And, he doesn't have cash wealth to speak of. He is a real estate speculator. Most of his wealth is in the form of mortgaged properties. Most of the cash he gets is spent on servicing these mortgages.
Without campaign donations and donations to his new Legal Defense Fund he would be in grave trouble, financially. If he runs out of lawyer money at this late date, the judge could force his lawyers to represent him for free, as happened in the second Menendez Brothers trial. Without the money to pay for ancillary services, the second trial defense was not as robust as the first one and the boys went to jail.
As far as "spectacular," goes Trump had better mind his manners. I'm not saying that he would be bound and gagged ala "Bobby Seale in the Chicago 7 trial." But he could be held in Contempt of Court and banned from the proceedings. Also, the Jury Pool for Fulton County will look more like the two election workers he slandered, than him. They will be less tolerant of jackass behavior than Trump Trolls on a meme site.