One I simply do not trust the ferries to get anyone anywhere at any time. If you have the time to lose a day try to take the ferry. That is just me.

That said, we regularly get up and start the boat moving in just a few minutes after I get my head off the pillow. I would see no issues on any of my boats or trips getting to a Tortola dock by 9. I have done that many times. Your crew or personal habits may be different. Walk 360 around the boat. Make sure no lines are in the water. Start the engine and let the morning go. You are underway. Have someone down below put everything out in the sink while you head out the harbor. Drop the ferry dependent crew at the closest Tortola dock or your dock if you can make the time. There are many Tortola drop off options depending on your boat skills and the ferry you hope to catch up to.