if you buy the pope stuff all togheter you get everything needed to install it and it WILL mate to stock exhaust, you just need to use your own nuts and bolts to made the midepipe. id suggest using two of the gaskets where he only gives you one but it will work.
unless you can find a steedspeed like above that is pretty much your only option that is currently servicable. anything else will have NO waranty associated as they are out of production. the ebay one realyl shouldnt be considered over stock.. your stock one would have to be catastrophically leaking i think for it to seem like a good deal.
unfortunately, msp stuff is custom and expensive =(