Shawn,
I went thru the same thing you are considering doing about 2 years ago. After a long search, I ended up buying an entire front suspension from an 78 911SC that had S alloy calipers and Bilsteins. Total price with shipping was about $800 and took about 2 hours to install.
You are way better off buying an entire front suspension than trying to fit the vented rotors and brakes onto your 67 normale. All 911 models had vented discs from 69-73. The only difference was that the 911S models came stock with the Lightweight alloy calipers, while the T and E came with the M calipers - which are just as good except a little heavier. Unless you are really touchy about saving a few lbs, your are better off finding a complete front suspension with M calipers off a 69-73 911T. Shouldn't cost you more than $300-400 and the entire suspension unit will bolt right on. Tryng to retrofit S calipers and vented discs on your normale will be a huge headache and will cost 2-3 times as much. Hope that helps.
Good luck