The rotor (Raybestos #6008), from a two piece rotor/hub assembly off a late 60's full size Ford (e.g. '68 Ford Galaxie), will bolt up. The rotors are 11.75" diameter and 1.20" thick (vented) and preclude using the stock caliper.
A related option is to use a one piece rotor/hub assembly from a '69 Lincoln Mark III (Raybestos #6012), '72 Ford Galaxie 500 (Raybestos #6014), or '72 Lincoln Mark IV (Raybestos #6028). 6014 & 6028 need to have their races changed to take the right bearings (13 & 12 to 6 & 2 bearing sets).
Another related option is to use a redrilled hub, to the Ford pattern, from a early '60's Chev Impala. The .40" offset of the hub flange allows you to run an externally mounted rotor, such as one from a '74-'81 Dodge AW100 or 150 (Raybestos #7036, without changing track width.
DISCLAIMER: The information provided is based upon my own experience and/or research. You are not entitled to rely upon it. You need do your own independent verification.
Richard O.
Seattle, WA