Name this prototype

So, our government has introduced a 75% wage subsidy and, to take advantage of the program, we have hired another full-time staff member (Jeremy - general help).

One morning, we supervised him taking apart and reassembling various engines. We then tasked him with assembling five engines of a particular model. After he successfully pulled all the necessary parts for the build, we requested that he assemble one engine and show it to us for proofing.

This is what the engine looks like and we encourage forum members to come up with a name for this unique engine, basically a prototype.

BTW, Jeremy is an excellent worker, just not familiar with model engines but, since then, has assembled dozens of engines, all perfectly