Rats and mice for sure. ASF maybe??
You will have to put in a LOT initially. I'm not sure exactly how much, but I think you need to think about your own budget first to see what you CAN before determining how much you SHOULD put in.
I would suggest contacting Becky at www.wfreptiles.com. She just started a Rodent Business here in my area this past year or so. She would be a good person to talk to.