Richard Mahue is the gentleman that is producing the castings for this engine,it is a beautiful piece of work,however it is just the casting of the block and what you can see externally,much work is needed to complete for a working merlin engine. And the price for these castings is around 2900.00 dollars,not bad if you want to spend that kind of money for a good looking paper weight.
Here is the link for you. http://dynamotive.netfirms.com/merlin/
Hope this helps.