I dont know if your going to find prefab exhaust for the II. I suggest going to your local exhaust shop and they'll make you one for a few hundred bucks.
Last I checked a half-dozen years ago, even the V8 II pipes had been discontinued by Walker for some time. I would imagine the 4 cyl stuff is long gone, but you might try a local auto parts store, if you still have a local-owned one. The corporate chains will be of little use (AZ, O'Reilky, CSK, Advance, etc).
Local shop should be able to do it for less than the prebent pieces anyway, and the tubing is the same. Only hiccup might be if you don't have the flange to the manifold.