As far as I’m aware, the only mainstream two-seat Hunter kit was a 1:72 job from Matchbox about 25 years ago. I think there are plans to re-release this kit under the Revell label.

The only other two-seater was a Vacform in 1:32 scale, made by Echelon. I don’t know how widely available this kit is or ever was, but the two pictures I’ve found via-google suggest it makes a half decent model.

http://www.ipms.nl/mip/expo-mv.html

The Hunters are about half way down the page.

Hope this helps.