There's a very good chance that the mis-fire codes are being caused by the faulty O2 sensor. Since the entire left cylinder bank is throwing mis-fire codes, replacing the left O2 sensor is the logical place to start (especially since there's a fault code for it). I've seen clogged catalysts' cause similar problems, but the O2 sensor is the most likely problem.

There's also a chance that the P0410 code is being caused by the O2 sensor as well, since Air Injection function is checked by monitoring the O2 sensor voltage during air pump operation.

I'd start by replacing the drivers' side O2 sensor and clearing all the codes.