Something like this - a Silent Superb ?
(it was unclear if this was that actual version).
That manifold doesn't look very complicated ?
Short of endlessly trawling fleabay, or approaching Villiers Services for one, maybe the local fabricator could whip one up ?
A simple tubular stub - to suit the carb, and a 2 bolt plate welded on would about do it. ?
I had a manifold made up for an Enfield project. They used a long-necked Amal, which are near impossible to find as the correct one.
Wasn't especially expensive - and I had it done in stainless, so was a real work of art.
A plain steel one would not be beyond most workshops.
And if its all thats stopping you going for a ride. !
Be thankful its not the exhaust thats missing. Now that does look special. !!
Good luck, keep us posted..
