The numbers on the fuselage panels were only on one side, and they only came painted on factory-direct paintjobs. When planes were repainted in the field, they did not repaint the stencils like these numbers and many other stencils/warnings/symbols. In fact with these field-painted-black planes I don't even think they had the fuel spouts or oil spouts marked.
They definitely wouldn't have wing walk lines, either. Even as early as the BOB those were being overpainted and not re-outlined.
SOMEtimes, for some reason, they masked off the chin oil cooler warning before painting, so these would be intact. Other times, they were painted over, and sometimes painted over and reapplied.
You really need to find a source for the oil cooler warning labels, but all the others (especially the latch position lines, the slat/flap warnings, the trim tabs and all those other goodies) probably need to be removed on this particular skin.
EDIT: Which is why it's important to make the skin look good, because it doesn't have many details