disc swap into a 64 Barracuda

I have the opportunity to get a complete disc brake setup from either a 73 or 74 Dart Sport at what I deem a reasonable price.

My Question, will this swap into my 1964 Barracuda in place of the old drum setup, with virtually no massaging, or a minimum of massaging? Or am I looking at a major headache trying to make it fit?????

I'd love to make this a disc front/drum back car, unless I can find a rear end to replace the 7-1/4 and upgrade it to rear discs, also, but for now.....

Thanks in advance

FF