More than $4000 for that? It BETTER be 304SS full custom exhaust, as the FACTORY exhaust is about $3500 and it fits perfectly. @COYS recently bought his entire exhaust system from Toyota (on a sale)Both Mighty Muffler and Exhaust Pros quoted >$4k. That's for the whole system, manifold to tailpipe. And I'll definitely put a cage on it, one way or another.
I bought my Magnaflow down pipe from O'Reilly's for about $300 (4 years ago) they are more than that now. The additional cat is also available from them. You can also buy the Bosal muffler from them. I have less than $1000 in my entire exhaust and it took me about 8 hours to install all of it, as it was a great fit. However, I would be pissed if my OEM exhaust got cut and insurance wouldn't pay for exact replacement.