Need brakes done on my 68

Hello all, I’m really grateful to have a wealth of knowledge at my disposal here on the forums! Pardon my lack of knowledge as this is my first car ever that I’m building. We are so close to having my beautiful 68 New Yorker coupe on the road, but she DEFINITELY needs brakes. It’s been sitting for 40 years.

the car has power disk brakes up front and rear drums as far as I know... where could I buy a brake booster for the car? I’ve seen some online but don’t know if they’d work! Here’s what...

Need brakes done on my 68