BB Exhaust Manifolds

I have an unmatched set of BB exhaust manifolds. The 1st one is casting #2843992-2 and it fits 68-69 B-body 383-440 left side. The other one is casting #2899879 and it fits 70-71 B,C, and E body and 72 B and C Body 400 and 440 right side with functioning heat riser. Both have been bead blasted and painted properly. Asking $150.00 each plus shipping and I will seperate. Thanks for reading.