Looks like the driver's side tin was repainted at some point. It has a small crack at a mounting hole, toward the front of the car, I've tried capturing it in the pictures. No cracks around the spark plug area. Looks like someone welded an underside nut at one of the spark plug wire clip holes.
The passenger side tin has surface rust, but no cracks that I can find. It could use a bead blasting and repaint. Otherwise, it appears to be in good shape.
I also have a few other tin pieces if there is something else you're looking for (no heat exchanger cover tin though).
$40 + shipping. Paypal preferred.