Need an exhaust downpipe from exhaust manifold for a Marina 180 B series engine

[old_n_notpastityet]

I have been doing up a Roadster Mk 11 with a Marina 1800 B series engine fitted. I am now roadworthy at last but the downpipe from the exhaust manifold has part of the flange rotted away so had to improvise for now.So looking for the first pipe that fits onto exhaust manifold. cheers

More than willing to pay for it and cover the postage costs. PM me if you got a spare thanks