Kelsey Hayes Disk Swap

Buy a "soup to nuts" kit from either SSBC or Summit.
These use the drum brake spindles and the Mustang rotors, which are much easier to find parts and replace in the future.
They are anywhere from $600 to $800, but you get everything, no piecing it together, and everything fits.
A few on here have done it this way with no issues.
Just my opinion. I actually have the KH set up, and I am not looking forward to replacing the rotors.