Just watched an interesting Judge Judy case. Guy bought Nascar Champion Rusty Wallaces 1990, $780K coach last year for $30k. Hires a driver to drive it across th country to the west coast. "Apparantly" the hired driver drove it overheating and caused issues. He was sueing for the $1800 tow and the $1500 he negotiated for the job, after abandoning the bus in Denver. He ended up winning the tow fee, but didn't get paid for not completeing the delivery. It was an 8 day fix he didn't wait for.
More insight into what you can run into driving others buses across the country.
It's why I don't offer my serivces, there is too much liability I would assume on the new buyer that it may make it look not cost effective. You could easily double or triple the cost of the bus in delivery.