Making a Dual Carb manifold for a 263?

[Buick 53]

I was wanting to put a dual carb setup on my car, but Iam have trouble finding one. I know a couple of guys have made their own and was wondering what kind of material they used and maybe what design worked best. I would also like to build a set of headers. Is there a kit that can be purchased that would be easily manipulated to fit the engine? Any information would be great, or if someone had a spare manifold I would be interested. Thanks

[Spud]

There's one on E-Bay right now, $255.00 with two days left. #220362075583

[theoldguy]

I have a 41 compound carb intake sitting in the barn $150 plus shipping.
PM me if you are interested.
I used the exhaust on my 40 but did not want to use the carb system.