I have one snake who eats live mice. I buy them, several at a time, and fatten them up at home! It doesn't hurt to feed 3 mice in one feeding if the snake will take the third mouse.

I think your plan sounds fine. Just monitor your snake. If the feeding response decreases, stretch the feedings to every 6-7 days.

Poor snakey!! Being bitten by a rat that big must have hurt!!