I stumbled upon a 1981 Chieftain abandoned at an East African airfield. Turns out it had been parked up in 1984 when the engines had run out of time. I was there ten years later and less than $20,000 had the aircraft minus engines, props and cowls bought, moved and under cover. It was a very tidy 2000 hour airframe and the only real damage was on the ferrous fittings.
A few years later I came across a real stash, several airframes and many, many complete engines. All under cover and possibly still there.
Sourcing avgas had become an issue in some areas of Africa and many of the operators had stepped up to turboprops,-F406, B200, LET 410 and the likes.