To paint or not to paint always divides opinions among collectors.For me personally I prefer not to paint, unless I absolutely have to , indeed only one of my machines in my collection have I painted , and that was because it was really rough when I aquired it. I’m far more interested in mechanicals, whether it starts ,runs and performs as it should , and doesn’t leak oil all over the place.
As Charlie says , it’s yours , so do as you wish.
Andy.