Here is a drum bellow design for a side draft forge that Brent Bailey posted at his site. The drum bellow is ingenious and took me awhile to understand that water needed to make it work. I believe the design would be well suited for Jamaica.
Brent Bailey Forge
Once a good fire source is demonstrated, anvil shaped pieces of iron will magically appear, plus some scrap iron and steel for use. Most all the steel will be from autos and trucks so I would advise learning the ASAE numbers on auto industry steel. Jamaicans are extremely resilient and thrifty so they will make things happen in their own "Soon Come" fashion, but remember, recycling is a necessity and have taken it to a fine art form; don't be surprised at what happens and appears. Enjoy.
Any Alexander G Weygers books would be a wonderful gift to leave with the fire keepers, especially
The Making of Tools and
The Modern Blacksmith. Used copies from bookstores would be more than appropriate.
The Complete Modern Blacksmith would be the ultimate book for the hearth, they will understand it perfectly once the view it.