I would land taxi from Garner to White Bay...long way with weather and lots of crew. If you do it make sure you have a cell phone or better yet a VHF that works.
Cooper on Sunday will be an issue if you dotn get Boaty Ball. I am out the week before and can update you. Never had issue at CGB or Anegada. Try to avoid the standard CCW rotation and go off cycle...meaning maybe hit Cooper Wed
Use the webcams to check Cooper and CGB anchorages
https://cooperisland-bvi.com/QAN_webcam.phphttps://www.resortcams.com/webcams/cane-garden-bay/I use boaty ball as a proxy in the season...meaning if open I wont stress about getting somewhere since I oculd always use a boaty ball