humm how long is your daughter in her room during the day??
2/3 hours out of cage time is good, but during the day if he is alone, not so good, i think try his main cage in the main family room, even if he is left in the cage he can watch what goes on etc thats how so******ation will start and the more familiar he gets with you all the more comfortable he will be being handled
but don't expect too much at this point
try to keep to a routine with his out of cage time
he needs 10hrs plus sleep a night in a quiet area in the house, so he can go into a travel cage in your daughters room etc
diet plan looks fine, try corn on cob on a bird kebab, this is messy but will be a good time killer an toy, i let nut have a quarter a day (raw or cooked)
also what toys does he seem to like the most?? nut likes anything she can shred or destroy, as its also important that they have things to do when in the cage
it can get very stressfull when so******ing especially when they start biting, if you offer anything an he bites you, take it away! nut bit me once when i offered her a treat, i ate it in front of her, and she never bit me again when i offered her treats, but she is not motivated by food or treats so made so******ing/training a tad difficult
watch body language, even a turning of the head is a polite no, walking away, lowering head and body with wings parted, parting of beak are all stages of a warning of a impending bite
i can't help but yelp when nut bites me, i'm not dramatic, but when nut bites she BITES, i always say *NO BITE and give her a very dirty look! just as we need to watch there body language, they also watch ours!
but punishment for any bite must be done asap after bite, weather it be cage time or a tellin off
head rubs are nuts fav

but she only really allows me or my man to give them, an only my son if we are not in!
before giving head rub say or do a specific words/action (same for every1) if head bows down thats a yes, do not rub down back, belly area (these are sexual) only head an cheeks, top of beak
family meals are nuts fav time, as she gets a healthy share! next to baths
hope this helps some, but patiance is the key, but don't be lulled into a false sense of security, nut use to bow for a head rub an bite me when i walked over to her?? it takes a few good months before you learn all there sneaky ways! an they will always find new sneaky ways to throw you off guard!
keep us up dated!