2bbl Intake... To Make or To Find?

Not sure a 1 barrel manifold would support a 2 barrel carb. I suppose it would depend if the velocity of the flow would suit your engine. But 35 clams is a decent price for a manifold. As time goes on all this stuff will get harder to find.
It will. It's been done a good bit. The runners on the Offenhauser four barrel intake are the same size as the stock one barrel intake.