Multiple model kits of the F-19 were released in the 80s (https://en.wikipedia.org/wiki/F-19#Notable_appearances_in_media https://en.wikipedia.org/wiki/F-19#Not

Multiple model kits of the F-19 were released in the 80s (https://en.wikipedia.org/wiki/F-19#Notable_appearances_in_media https://en.wikipedia.org/wiki/F-19#Notable_appearances_in_me...) - they have a vague resemblance to the F-117, but I don't know of any releases of F-117 models before it was officially revealed.