Well, I guess what will happen next is just to get the car going NAed for now. A friend offered a header to borrow temporarily. Looks like a nice piece, just needs sandblasting and paint. I think that's fair, my friend will get it back in better shape than he lent it to me!
Nice 2.5" outlet will mate up to my 3" turbo exhaust better than the puny reducer that I chopped off the end of the header.... I'm not too worried about backpressure and such right now, as this won't be permanent.