I did read, very carefully, what you posted. For me, it doesn't matter who restored it. Once it has been restored it is not original any more. Authentic, desireable, extremely pleasurable to own, for sure. And I'm jealous as Hell of you. But it is no longer a 1938 motorcycle. I do not, however, wish to tarnish in any way your ownership of this lovely machine so I will desist from further discussion of this point in case that occurs.
The grips do grate, somewhat. There are firms in the Uk (and surely in the US) who make period style grips.