Good place to start, but if you are going this route, maybe a good time to replace all components, MC first , rebuild, if bore is in nice shape, if not get it sleeved, same with wheel cyls, replace all steel lines, and flex hoses.
Are the brake shoes relined, if old, get em relined, no matter how much material is if bonded and old, they could fall off literally.
Have drums, inspected, measured, no more than .060 over, and have machined if necessary.
Once brakes are all new, with lines, and such, you could use DOT 5 silicone brake fluid, very good for vehicles that have a lot of down time.
Disc brakes, kits can be installed, for superior braking, save old parts, can be put back, if wanted, this is a good idea, in areas of heavy fast traffic and hills. Having said this, stock brakes can be pretty good if adjusted and installed correctly, others will disagree, but many will attest to this.....good luck