Mark, increase the value of the engine, fasten a plaque with engraved text on the upper case. "Rebuilt and restored by Mark Paris aka Hondaman" or something similar.
You're not the first one to recommend that(!). I don't think I am quite that important?
The guy that built my VW engine does that. When you go to shows around Texas, Oklahoma, Louisiana, and other places, you will see the little plaque sitting right under the generator stand. And when you see them for sale, it never hurts to have that plaque. You know it's a good engine if it's "Doug built".
I imagine the same would hold true for "Mark built" engines. If someone has to sell a bike later, that would be a stamp of quality.