I believe the Jazzmaster J Mascis signature model has a 9,5" radius.
I also believe they're made in Japan though, but I've heard they are of really good quality comparable to the American ones.
Me, I love my Jazzmaster AVRI 62. My Les Paul hasn't been touched since I got the Jazzy about a year (?) ago. Not sure why the radius would be such a big deal, but maybe it's just because I've gotten used to it. Whatever you get, be sure to get the Mastery bridge or at least a Mustang bridge.
Jazzmasters are beyond cool