So you were impressed by the idea of an 11hp model engine eh?...want to see a 32Hp model engine?......no?.......ok I'll show you anyway
http://www.justengines.unseen.org/evo.htm
And the Evo Website:
http://www.evo-engines.com/index.php (Nice engines....Us Europeans are a clever bunch!
)
This one is a very similar design to the 11Hp I mentioned above but a lot cheaper:
http://www.justengines.unseen.org/mv700p.htm
I think the 11Hp one may have been a scale replica of a full size engine, thus the high cost.