I think if Trump can get someone to loan him money, he will. And then he won't pay it back. What's "Dog the Bounty Hunter" going to do? Take on the Secret Service? He'd lose.

Again, I am not a criminal lawyer. But I don't think bail bonds work that way. The bond is provided to the government, not the defendant, so Trump has no financial interest (from the bond) in violating the terms of his pre-trial release.

Hard to see a realistic risk that Trump won't show up for his trial (if it gets to trial). Secret Service cuts both ways - a "Dog the Bounty Hunter" can't get to Donald Trump, but it means that the federal government always knows where he is. Which means that if a Georgia law enforcement officer is told to serve an arrest warrant because DJT didn't show up for a required court appearance, it won't be hard for them to find him. And I doubt very much that the Secret Service will physically prevent a duly-authorized state law enforcement officer from arresting the President. Which is why it's pretty unlikely that Trump won't show up for his required court appearances.