The biopsy was rescheduled for the 20th. They didn't have the right shape marker clip. I'm putting it down to supply chain issues. Didn't realize it until the last minute. It needed to be a different shape than the one already there from a previous biopsy in 2016, and the only shape they had was the same.
I have an appointment to have the emergency brake fixed on the motorhome on the 17th. Barring a parts issue that should be go to go for the trip to Quartzsite.
Now to start troubleshooting the electrical problem.