Build a 2.5 HP (1.8kW) Stirling Engine
It has been done before by at least one individual. Old Chinese proverb says, "What one fool can do another can."
Go to <starspin.com/stirlings/jimd6.html> for photos and details of the Mountain Man's Stirling engine, the Jim Dandy #6. Jim Symanski built this engine to run his machine shop via old time belts and pulleys.
Next get a copy of "Around the World by Stirling Engine," by Brent H. Van Arsdell from <stirlingengine.com> Chapter 10 consists of 9+ pages devoted to and interview with Jim about his engine. Brent and Jim discuss details of the engine built by Jim Symanski and his ideas for future improvements.
For some background material go to <http://www.stirlingengine.com/ecommerce/product.tcl?usca_p=t&product_id=84> to find a link to download a copy of Chapter 6 from the book "How I Built a 5-HP Stirling Engine" by Dr. L Merrick Lockwood.
On man in New Zealand has some of the material in hand and anxiously awaiting the remainder so he can get strarted on this project.