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If it’s sit long enough for the tires to go flat and the bungees to go that bad then the engine isn’t very likely to be any good either. All three tires are flat… the one in the sun looks rotted at the bottom to me.
The tires being flat and the landing gear spread like that can also be the result of a hard landing after the fabric separated and peeled back. I didn't do a close inspection while I was there.