I recently picked up a Vendo 81 in nice original condition and the paint on the letters was worn of (or maybe painted over). .
Not to bust your bubble, but the machine is not an original paint job.. it looks fine for display purposes dont' get me wrong but the keys to know it's been repainted:
painted over the Bottle door medallion
Painted over the Coke logo (obviously why you needed decals)
Painted over the Vendo logo
No markings on coin door , like "Deposit coin here", "Open Bottle here" and "Do not deposit coin if bottles are not visible"
and I'm sure you'll find some overspray on the stainless trim and elsewhere.
but not a bad display until you decide what you want to do with it...