De acordo com esta página foi doada à Universidade Aeronáutica Embry-Riddle:
The Superstar airframe was later used as the prototype Aerostar 800. The prototype 800 was the Superstar airframe with two more seats (due to a 32” extension of the cabin) and featured two 400-hp. Lycoming engines. The 800 was under development when Ted unexpectedly passed on in 1976. Piper continued development of the airplane as a replacement for their P Navajo but never certified it and eventually donated the airframe to Emery Riddle [sic] Aeronautical University.
Esta é a única referência que posso encontrar para a localização final do Aerostar 800.