I need a little help please!! I'm really seasoned in BVI & USVI travel but my logistic skills have been greatly weakened by the pandemic! And probably the thin ferry schedule.

We have a last minute opportunity for NY's on VG. I cannot for the life of me figure out how to get from STT (arrive 2:35pm on 12/28) to Virgin Gorda. There's Roadtown Fast Ferry at 5:30pm but I don't see a way to get to VG from RT. Dolphin isn't scheduling that far out but I need to know I can get there before I commit.

Any help?