Hi David,
I'm familiar with your area. We've had a steady stream of
PDC students from that Atenas over the last few years. We live not too far, but a bit lower (1000ft), in Mastatal. You can see our work and glean lots from our website and fbook page:
www.ranchomastatal.com
https://www.facebook.com/ranchomastatal
It is hard to provide any specifics to your question without a bit more context.
Compost can be effective in the tropics for garden scale, anything larger than that and you will want to consider more passive systems (alley cropping, coppice management, keyline design, etc). Given the quality of your soil though, it might be a secondary system, and heavy mulching more effective. Most compost additions in the tropics will get broken down quickly, as long as you approach a good
Carbon to Nitrogen ratio. Consider building the compost piles directly on your
garden beds as well.
If you are interested in consulting services, myself and a few more from our core team have recently formed a professional landscape design/build collective.
Our website is still under construction (working on our portfolio at the moment), but if you would like more information you can find a bit here:
http://ranchomastataldesign.yolasite.com/
Don't hesitate with any questions and good luck!
Scott