I believe I also have an OEM exhaust manifold and catless up-pipe (ebay special, solid piece with O2 bung) sitting around. About 80k on manifold, maybe 2k on up-pipe.
Just tossed my oem manifolds in the scrap last week. 195k on them tho. Haha. Sounds like they're are plenty to go around tho. However, if you need cross pipe gaskets (and I think manifold to uppipe) let me know. I've got brand new GrimmSpeed ones here that I have no use for anymore.