Looked all over the net with no luck. But I did found this opel GT in hummings news for ya,
$ 750 1972 Opel GT Rochelle, IL
OPEL: 1972 GT, needs restoring, runs or good for parts, $750 obo. Keith Smith, 815-562-5770, 815-757-2897, IL. Category: Collector Date Posted: 02/19/04