Id order from Summit Racing, they ship fast and have great customer service. Ive seen my stuff in 2 days from them on ground shipping.
So in case your interested... I got the part #'s for you
BBK longtubes, ceramic coated part #: BBK-15410
As far as midpipe, I dont know if brand mixing works as well with longtubes or not, but BBK has a H and X midpipe for their longtubes. I think BBK X's sound like chit, but never heard them on a longtube setup, so it may be different.
both are catless midpipes, dunno if you need cats or not.
H pipe part #: BBK-1535
X pipe part #: BBK-1635
might wanna double check all those if you decide on them, but im pretty sure its all right.