No one preserves anything old in flying condition here, we're throwing our aviation history away from the ramps into gate guardians all the bloody time.
The DC-3 was worse than it looked , all the control surfaces needed to be recovered and some corrosion.
I look at all the FASI aircraft sitting there at Halim (Beech T34As, Bravos etc) and the 2 Harvards on the airbase side of Halim and they are rotting into the ground and it's sad, most of them are getting beyond the point of being able to be made airworthy again.