Sounds good- & yes, offer food when he's in his hide. Some BPs will be watching to grab prey from the door, others prefer that you leave it there & totally go away (don't watch, & room dark). Hard to say which plan your BP prefers- without instructions from prior owner, it's "trial & error" for you. I'd say try to get him to grab prey, but if he doesn't, just leave it & go away- check in the morning & hope it's gone. Since he's a more mature snake, it's very likely he's used to being "drop-fed".