Eh.. I breed rats for feeders, on a relatively small scale (one male, 12 females.) I rotate it so that there is always a few litters in various stages of growth. It is tough; you'll have times of feast, and times of famine. I had months with nothing.. now I am euthanizing and freezing hoppers because if not, they'll outgrow their usefulness, as my adult female BPs are not feeding now, in the midst of breeding.
If I only had 1-3 snakes, I personally would jsut buy feeders. I'd get them on frozen/thawed and stock up on the sizes I would want. Since I have snakes growing at all sizes now, breeding rats is fine because it works for me, but it IS more work than keeping the snakes themselves! With daily feed/watering, bedding changes.. etc..