Not trying to bust your balls, but that is not real production you see it's a "Photo shoot pretending to be a factory" I don't say they are not serious but you don't assemble bikes in high heals.
and I DO NOT state that Sur-Ron is not a serious Manufacturer, this is a typical thing to do when...
My 2 Cents...
I've been a couple of times to the FastAce factory in Taiwan ( last time 4 years ago), they machine nice parts but no test track or suspension Dyno *
We developed our own internal parts but that was for a Off-road Motorcycle. I would suggest you choose the RST as that is a bicycle...