This. You can keep her on that schedule until she's taking small rats, and then offer one a week.
If you're worried about parasites you can call the vet and ask if he'll do a fecal exam without seeing the snake. If so ask how to collect and ship the sample.
I'll try it and see if it helps. It just seems like a lot of eating!
Female Common Boa - Rosie
Female Terrazzo Corn - Mercury