He needs our support. Be warned though, that he is often not available. When he is, he will fill your ear with all sorts of useful info and stories. It must be remembered that at the moment no one, including the inventor, has all the answers on this technology. To play this game is easy for anyone wlling to pick up some tools and see for themelves.
First thing is to take a look at the free plans , and take a trip to the local plumbing supply.
There are few special skills required. J. L. Naudin's diagram is also helpful. I have also made a simpler diagram which slightly changes the valve placements, as described below. Get a good, serviceable single cylinder engine. It is a good idea to make sure that it does have decent compression.