Complete kits are readily available from multiple vendors, including this site.
Note: If the shoes have not been serviced for many years, the anchor pins will likely be rusted to the bushings. If badly siezed, the easiest way to remove the pins is to cut the shoes away with a torch such that heat can be applied to the bushings.
If this is necessary, you may want to replace the anchor pins. These are not part of the kits.
In any event, use anti sieze on the pins upon reassembly.