Start looking for a nice Chest Freezer (Best Buy I got mine for $189) and a Vacuum Seal machine . Sounds like those are good healthy Rats eating a well balanced diet. Gourmet feeder rat will be entering the market, great for keeping healthy snakes $$$
That's my thought process haha, though keeping a huge number of breeder rats eating salads every other day may take its toll on the price of feeders hahaha, may have to appeal to people looking into feeding only high quality hahaha