Just thought I would toss this in, if you are renting a car, please be sure to get a jeep or 4 wheel drive. Tortola Roads are challenging in some places. The "road" we took to Smugglers from Long Bay was an adventure!
Before making changes to your trip I would do a little reading on the BVI Alive forum on Facebook. Maybe do some more research as I think someplace on other places to stay in the BVI on other islands you can access the beach while in quarantine as they are very remote.