Many years ago I had looked into a business in the US which was based on recycling tires and plastics. The US (as do others, I'm sure) buys these products, once processed, to incorporate into asphalt road materials. The business was gathering and processing the materials (shredding and bundling/packaging) and shipping to highway depts. around the United States. At that time, a processing machine and business start-up was around $600,000 US. The "machine" takes up a medium sized warehouse space. My snag was the required area for storage of materials prior to processing. Here in the US several acres were required; I expect regulations would be different in Belize. This would go great on the mainland or even in Mexico provided there is still a market. The beauty of this business is that people pay for tire disposal so the owner of this business gets paid at both ends of the transaction. Just a thought.
"Earth is an insane asylum, to which other planets deport their lunatics" Voltaire