[j.fro]

I'm not in California, so I don't know the level of nonsense you're dealing with regarding smog. However, there are a couple of options regarding the CEL.
1. Weld in O2 sensor bungs after your existing cats and extend the wires.
2. Get a tune/flash that removes the post-cat sensors. The Porsche ROW flash and the Softronic flash are examples that will work. FWIW, I've got the Softronic and it's kept me O2 CEL free for more than 5 yrs/80,000 miles. It also provides a bit of a power boost.