I would love to build a 10hp to turn a 10kw generator. I would use a parabolic mirror to heat the water to steam eliminating the need for a firebox. Yea, anybody with plans would be a help. You might try Hobbysteam.com Lots of plans to download but you need to donate to the cause. It is pretty cheap... just 12 bones for the year gets you in to a wealth of knowledge and plans. I looked at the plans but I'm not familiar with steam enough to know what I am looking at. Good luck and please keep me posted on your progress.