Nice looking BP you got there. Congratulations.

I would advise, wait a week to let him get acclimated to his new environment.
As long as you feed with tongs, there is very little chance of him mistaking your hand for food, unless you don't wash your hands after handling rodents. Any time I have been bitten, it wasn't due to a feeding response, it was from me trying to sneek his waterbowl in or out of the cage while he was sleeping and having him wake up to my big hand right there in front of his face. Which you will understand completely if you have ever been scared awake...

Oh, if your local pet shops don't have tongs in stock, you can order them online or if need be get some of those cheap BBQ tongs can also work. I also don't advise grabbing the prey by the tail, if you are feeding live. Once they go into panic mode, if they pull themselves up, you will possibly get a bite from them, and they have wayyyy bigger teeth than a BP does...