Found the wheel cylinders. Picked those up, along with bearings, shoes, and spring kits this morning. Hoses come in tomorrow morning. Gonna see how that works before also doing the master cylinder.
Just keep in mind that you will have to bleed the system when doing the wheel cylinders, and then do it again, when you replace the MC.
But, it may be worthwhile to do one step at a time so as to not introduce too many variables and changes at one time. That would especially good if you have not ever done it a lot.
When you do get to the MC, you will have to perform a process called 'bench bleeding' of the new MC. That is very important to do well or you will always and forever have soft brakes.
When bleeding the wheel cylinders, you will find it very useful to have a small offset wrench made for the task; make sure you get one to fit the bleeder screws hex size on your wheel cylinders; they may be 1/4", 5/16" or even 3/8". The right angle ones are more useful for drums brakes than the simple offset types.
