Went to Excessive Autosports today and spent time talking to them about oil pans and exhaust. I've known them forever and they are experts in custom car stuff. Also they are only about a half hour away from me.
https://www.excessiveautosports.com/. I also got a pair of 2010 camaro exhaust manifolds to try and see if they fit. they fit like a glove. Only problem I see is the frame brace directly below them.