Best of luck, I've had no luck finding anything on mine. But try here
http://gtxregistry.com/
http://www.hamtramck-historical.com/foundByVin.shtml
I would also contact gts. and give him your info and if he has anything on it he will let you know.
By the way I love that color- we had one when I was a kid same year and color- not sure where it ended up either.
Good luck Scott