Probably no hope of Stainless for these, too much work building the special welding fixtures needed for it. But the new coating they're using looks much better than the old coating like what NPG puts on them. Wrap the lower portion in exhaust wrap to protect the coating against chipping during install and use if you're so concerned.
I talked to Marty again today, ordered my set. He has headers and 3 bolt y pipes in stock, with about 100 2 bolt pipes in fabrication. He said they are willing to ship headers out immediately and then ship out the y pipe when they are finished with no additional cost. He also said that now that the original CASH sale is over, he will still honor the $379.99 price, but will not offer free shipping, not sure how this would apply to those who go for getting headers immediately and wait for the y pipe.