I don’t believe it’s the actual aircraft (which was c/n 15586/27031 43-49770 and appears to have gone to the SVAF in 1969).
I gather c/n 20835 was in preservation and with EAA WoA when painted as AC-47 043-770 “Spooky770” with side-firing guns to represent the machine in which your hero’s actions resulted in his honour.
Thank you for the clarification.