+1 for surety bail bond. "Cash Only" bonds are a racket for bail bondsmen.
What they also don't tell you is how difficult it is to find a federal bail bondsmen. I called every where in the Hampton Roads area to no avail. I ended up being rescued by one from several hours away. $9,500.... never to be seen again.
My understanding is that bond from a bail bondsman works kind of like a loan. The bail bondsman puts up the money ($50k in this case) and if you show up to court he gets his $50k back. This works kind of like a loan between you and the bondsman, I would expect you to pay some amount on the total, something akin to extremely high risk loan interest, but $9,500 is almost a quarter. Is that a standard rate for a bond?
The bail bondsperson did not even have an office. When I did get out and had to pay her she asked me to meet her in a Harris Teeter parking lot. She pulled up in an Audi R8 spyder. It's ridiculous. There was absolutely no way I could be considered a flight risk. I only did it because my parents were on vacation and I was responsible for keeping their pet alive for 3 weeks. It came down to a dead animal or $9,500.