if ya had the manifold off you may be able to lap it at home,,turbo too,,,if ya had the turbo off is try lapping/surfacing that myself,,and check the manifold with a straightedge,,ya may be able to get lucky,,,,i know its metal to metal connection,,nogasket,,,but for safety iusually take some permatex ultra copper and just put like a thin thin dab around the port,,by a little imean enough tobarely leave color,,not a big nasty bead,,,if ya had a machine shop around,,it would be like 20-30 $ tosurface it,,,,,see i got a big nasty belt sander,,heehee,thats how i did mine,,at work,on smaller parts we use the same thing