You should request a room that is easy to get to on a ramp i.e. on the top floor of Hilltop 11, the bottom floor of the North Wing, the top floor of the West Wing.
Taxis are plentiful in St. Thomas. It is easy to get a taxi from downtown back to Bluebeard's Castle. You should be aware taxis in St. Thomas charge per person rather than distance travelled. Suggest you pick up a free copy of St.Thomas this Week (actually published monthly) that gives the to and from charges for many places on St. Thomas i.e. the charge for 1 person from downtown to Bluebeard's Castle is $5; for 2 persons it is $4 each.
Enjoy your stay