So I have a frame that says Quentin Gatedancer... I'm thinking it was made in 1986 or 1987... I have been looking around online for another one and I can't find anything. Does anyone know where to look?

Quentin used to be a big distributor in Ill. they had a "house brand" of bikes (as did/do many distributors) and yours is one of them. mid to late '80s is about right. low-end "bike store" quality.