I was all set to do this. Shock towers out, new R&C suspension installed. I had a 2014 Mustang GT so the way that car performed got me all geeked out to put the same drivetrain in my 67. However...when all is said and done, and after researching for months and weighing options, I decided that can get similar power out of a stroker 302, and run fitech (or similar) EFI so when you pop the hood, it has the old school carb look. Way, way cheaper and honestly much closer to a true "bolt in". I decided I have enough challenges with this build, and cussing at a Coyote/6 spd install was not worth the hassle. The transmission is another big factor. The MT-82 is not the greatest gearbox and it's huge compared to a T5.
Good luck, if you tackle it as others have, the reward is going to be pretty sweet.
1967 Mustang Restomod Coupe