I think you are getting your self worked up over mice. BPs outgrow mice pretty quick. I have 2 BPs around 150g. They eat adult mice like nothing. When I do feed them adult mice, they seem to stay hungry. They keep on cruising around too much, like looking for more. When they eat apropiate size rats now, they just crawl into their hides.

Im just trying to say, dont work your self so hard over mice, Your BPs will outgrow it faster than all that trouble.

Is there a close by breeder/store that sells rat pups?