Do the other parts exist or do they have to be fabricated? Cover, rockers, intake & exhaust manifolds. I ask because at the first meeting I attended of our local Inliner chapter there were guys there selling these soon to be produced heads. All they needed were a few orders. My friend bought one and paid up front. A few years later he did get a bare head with promises for the rest. He never got it and he never got his money back. Another Inliner of note told me he had purchased what was left of this company and was going produce the parts that were never done. That didn't happen either. Were any Aris heads ever completed? It doesn't matter my friend died several years ago. This would be a good project for someone with a 3-D printer and some sand.