I went to a pet store and got a frozen adult mouse, although I was dismayed that it was white and not brown. I thawed it out completely and rubbed it on some live mice (poor guys probably thought it was Night of the Living Dead), then jiggled it outside of my snake's hide. He striked and is eating it right now! So even if he is a mouser, at least he is willing to eat f/t. Thank god. I'll order him some frozen hoppers and keep him on those until he's bigger, then try to transition to rats.

Again, thank you guys so much for the help!