58stepside,
If the bore is good, no deep pits or rust holes, it's a real simple deal. Pull the pistons, boots and spring out of the casting and remove the bleeder screw too.
Buy a wheel cylinder hone and hone the bore using a small drill, some type of lube like diesel, cleaning solvent or even a spray lube like WD40. This just keeps the stones from filling up.
Use a in/out stroke with the hone, running from end to end to create a even pattern. Not much is needed, just enough to make it bright and remove any rust ridges.
If there are deep pockets you couldn't remove, it might be a no-go deal. Stick the small spring in and each piston, being sure to orient them in the 'lip-in' direction.
Stick the boots on, the bleeder screw in and it's a done deal.
You will want to wash the wheel cylinders in something to clean them up before reassembly and squirt some brake fluid into them as a lubricant when installing the two pistons.
It's an easy job, but new ones are cheap too (I think), and they would be guaranteed to be good and leak free! Give it a try, I'll make you feel proud.
Stuart
