brian, that looks like a great build. congrats. hope you update this or another thread as you complete it.
i'm not sure about using a campy nr rd with a wide rear cluster appropriate for 130mm dropouts. that might be asking too much from it. usually, these rd's work best with 5- and 6- speed freewheels (120-126mm). even getting my campy nr rd's up and over to a 28t cog on a 6-speed freewheel is a chore.
i had a set of superbe brakes on my '79 columbus trek that worked great. i didn't need a special tool to center them. but i later bought one of these park obw-4 wrenches that work well when both adjusting calipers and centering them on the frame. (about $10 on ebay.)

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