Picking a master cylinder for a 69 barracuda

I have a 1969 barracuda that was a slant six base car. It’s been upgraded with front disc brakes and drum rears. I’m wanting to upgrade the master cylinder and add a brake booster. I’ve been looking at the right stuff kits and don’t know which one to choose. Also once I buy a kit, is there any other associated parts to buy with it? All the old parts were long gone when I got the car and I’d like a bolt in kit before I get started on brake lines