Unfortunately I don't think they can get the Discovery into the dock in La Paz. Even the Sapphire in Oct looked too big for the dock with the bow hanging off the front a long way. They would have to tender it and I think it would be a decently long tender ride.
Loreto is too far north unfortunately for them to hit PV in 7 days BUT it would be cool if they overnighted in Cabo, made it up to Loreto and then went back.