$519 ?!?!?!?!?! . Geez, don't let them see you coming - DO NOT pay that.
I got a quote with them from Tuscon, AZ to Dayton, OH at one point for $375. You would be better off just renting a cargo van and getting it yourself. That's what I'm doing to get my TFTC tomorrow - cargo van from Dayton to Chicago - 5.5 - 6 hours each way - 12 hour driving day tomorrow. STILL cheaper than that quote.