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I think Kirby has covered your options. I would add:
5. Build dog house.
It is an unknown yet to be solved.Still looking through my books for info on those colored markings. Found the same left profile photo as yours a few posts ago in Warbird Tech and the caption says "Festooned with colorful paint spots where combat skin patches were made..........." Several more books to go
Found this photo here with several other photos of your aircraft 41-11761 | American Air Museum in Britain
Captain Royden L Lebrecht, pilot of the famous B-24 #4111761 "The Squaw", pointing to ack-ack holes in the much traveled combat ship. Fort Worth, TX.