Any decent parts store will have the master cylinder. Does your car have power drums now? If not, then you'll need the power brake pedal assembly. The pedals do not interchange between power and manual brake systems. That will be a salvage yard find - 65-68 power brake pedal will work. Someone on the board here will have one that you can buy.
The booster is a bit more of a challenge, but again, you may be able to get it from a parts store.
Does your car have console shift? If it does (Sport Furies usually do), then you can use the 71-73 single diaphragm disc booster. They look like this, and while not technically correct, it will bolt up and work - you may have to do a bit of modification to the backing plate behind your drum brake booster. They are fairly easy to find from parts stores.
71-73 Disc Brake Booster
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However, if you've got column shift, you're pretty much stuck with trying to find an original 65-68 Bendix dual diaphragm disc booster. They're hard to find, but they're out there.
65-68 Disc Brake Booster
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