Free Cruising Guides
You can scroll down to find III volumes on the Lesser Antilles -Windward, Leeward, and Virgin Islands
While these guides don't offer any real charts, they do have lots of info and illustrations on approaches to anchorages
on all of the main islands along with lat and long coordinates for best points of entry and in some cases, rough sketches of positions of nav aids. Copyright
Plus, they're free. Hope this gets you started while searching for a chart book.
Also, now that the USCG has recognized electronic charts as meeting the publications carriage requirement for vessels that fall under that rule
, my guess is that paper charts may come a little easier on the wallet. I quoted many British Admiralty charts at $50 USD a pop.