I received a list of old aircraft kits from a customer of mine, and I'm not entirely sure if more contact information is available beyond the following website:
sixfox@earthlink.net. (Flagship Enterprises)
Among the listings are Airfix, Anmark, Artiplast, AMT, Aurora, Matchbox, Pyro, Revell, Smer, and so forth.
Check it out, and see if there is anything worth value or not. This is the only information I have at this time.
Happy Modeling,
Mark