You might want to ask your question on the Trawlers & Trawlering site (T&T). If you aren't familiar with it here is the home page for its various forums including the original T&T. http://www.trawlersandtrawlering.com/index.html
I have not participated in T&T for a long time, but there were regular participants who had done or were doing extensive cruising in that area as well as Central and South America. So it might be worth asking on that site, too.