Offenhauser Manifold with Stromberg Carbs (6-Pack/Tri-Power)

So I am in love with this intake....it's sexy as hell.

But I'm not a carb guy, never have been, so I'm here to learn, and I'll need lots of help.

The intake manifold is an Offenhauser and is in extremely good condition, number on base is "5916" I believe, can't find any info on it. It has been recently re-done and powder coated.

Carbs are supposed to be Stromberg Carbs, completely rebuild and "ready to go" although they are obviously missing fuel lines and linkage.

Anyone know where/what linkage setup I would need?

Also, should all 3 carbs have a choke, or just 1? (Center is the only one with a choke)

What else is missing? I ordered "The Mopar Six-Pack Engine Handbook HP1528" but it hasn't come in yet.

Also, would I need to change cams going from a 3-barrel to a 6-pack?

Thanks in advance fellas!