Thank you for your thoughtful response. How about this:
When an asset is transferred, the system archives it from Johnny and creates a new asset under Joseph with everything under the details tab, everything but the URI on the network tab, nothing under the assignment tab, purchase tab would be good information to carry, login would be local but since the computer will be reloaded, it could be created blank, and whatever is in the notes tab.
Unless I am missing something, you can't link an asset to a document so setup sheets wouldn't come across.
The only thing I can think should follow an asset is parts. But we don't have that yet.
After I rework the unit I sell (transfer) the unit to wrongecho because money. He has it, I want it. The system archives it from me (sans parts) and creates it under wrongecho.
Ultimately, nobody but myself and my techs will be able to see any of this, even from the client portal.