Try to keep note of if any fairings were painted when you are looking at anything used. Like look at vinyl and stickers that look like they don't carry over into other fairings, just good indication if it was laid down or not.
And look at handle bar ends and scratches like on the clutch cover and other engine covers, brake lever ends too.
Sounds like you have a good plan for a first bike anyways. Don't get something too big or crazy expensive, shit happens. Everyone's pretty much gonna go down at some point. Two weeks after I got my bike I got rear ended. Almost glad that I had that experience though.
Regular people are not going to see you as much, but policia will thoooooough.