I'm running the late model drum handbrake. Using the racefab brackets, and brembo calipers.
Basically the same steps, however you can't run the abs,
It's the stock rear trailing arm,
The only real problem I had was the handbrake cables,
The later model has the brake lever set further back in the floor pan, also it's offset to one side, not centered like the CC.
I needed to use 2x the longer of the two cables, which was a PIA to source...
Handbrake works fantastic tho! Couple clicks, and stronger then the disc setup IMO