In reply to Larry in Mazatlan.

Yes, good question. I am working very hard right now, making a comprehensive and easy-to-follow guide on how to build them. It has plans, directions, materials lists, etc. and is intended for all the other Peace Corps volunteers in our program, and sounds like exactly what you are asking for. I hope to have it done next week, and I will post it in .pdf format when it is. So please keep your eyes on the blog, and if you use my plans, give me feedback so I can improve it to help others. Thanks.