If your snake does convert to p/k and f/t you can buy some f/t in bulk from online suppliers. I personally feed 32 out of my 34 snakes f/t and it's much more convenient for me and my preferred feeding method. IMO feeding live over frozen isn't "better" nor significantly more nutritious. You can keep some f/t in the freezer in a opaque tub or brown bag so your g/f doesn't have to see them and they're not right next to your food. Snakes can be injured by live feeding of larger feeders which is why you always need to supervise feedings: that way if the snake strikes and wraps the feeder where it can still bite your snake you can intervene. If feeding live anything bigger than a ~medium rat can cause damage so most people feed their adults live small rats.