I have a 1980s Hohner B2. Early on it was converted to left hand drive and back again. Holes filled. Then resprayed. Overpainted, stickered, decorated. Then vinyl wrapped.
I stripped it. Filled it. Sanded it. Primed it. For weeks. Colour sprayed it. Left for weeks to cure awaiting a vinyl logo and final lacquer. Logo wrong size. Couple of weeks later... fell off the hanger and got scratched chipped and dinged...
Refilled, sanded, primed. Fell down again less damage. Filled...
I am on the point of giving up on a good finish and either spraying it with textured stone paint or airbrushing it with German WW2 tank camouflage and weathering it...