Congrats on the new BP

I would let her settle in for at least 7 days before handling, though some wait until the snake has had at least 2-3 consistent feedings. I don't think snakes recognize people by scent but I believe they can pick up if someone is nervous so as long as your confident handling it the snake should act and be fine.

I don't think changing the bedding would be a problem.

I would feed inside her enclosure where she's feeling most secure.