Help: 71Duster Drums to 68 Barracuda Disc

Hello all,

I am swapping my stock 71 Duster 6cyl front k-member and front end with one from a 68 barracuda 8cyl that had disc brakes/sway bar etc. ( I am not changing out the rear drums, just front)

I do have the proportional valve, but do I also need to swap the brake booster and master cylinder as well? or can I use the existing one from the Duster? any other red flags that I should be aware of?

I've done some research, but most pertains to upgrading to later 73+.

FYI - The car is older than me. Take it easy on me. ;) thanks!