Hi, Rav. I will try to answer based on my experience, so take with a grain of salt
How many hours should they have with you?
With my bird, on weekends, pretty much all day, except night time. On weekdays, about 3.5 to 4 hours daily. If you are a busy person, get your bird used to you being away here and there. But daily, quality time is a must for these social creatures.
how many hours are they supposed to sleep?
A: 10-12 hours is advised. I am a bit under on some days. It's best to put them to bed when the sun sets and wake them up when the sun rises. If this is not possible, artificially darken the room. My bird is used to having his cage covered at night. I like to cover him for my peace of mind because his cage is in the living room where my computer is. I'm on my computer till 12 midnight sometimes. I have head phones on also to minimize the noise.
Where can you draw limits?
A: Draw limits when it comes to his safety. Chewing cables, cords, window screens, flying on top of stoves even when not lit so they know it's a danger zone. I also draw limits to what he can chew for the well-being of my apartment lol! I like to keep my place neat, so no chewing on walls, blinds, doors, furnitures, etc. For this, it is important to teach them a word like NO that they would understand. You train dogs and reptiles so I'm sure this will come easy to you. Also, you may want to get him used to going potty in one or two designated places, so you can minimize accidents.
What daily rules do your bird follow?
A: See above for chewing. Other rules would be to not bite too hard when were playing or his preening me. Not be TOO loud all the time, especially mornings. I let him screech away here and there, I just don't respond or encourage it. A sun conure can make you deaf, but that's part of their charm.
just to give me a better idea, I don't want him to suffer but its a tad odd to have a feathered friend on my when Im doing human business in the bathroom. Or is that just a bird thing?
A: Boomer loves to go with me to the bathroom when I do my business LOL! Sorry, too much information, but he is a great bathroom buddy. He will even do his poop in the sink where he perches while I err perch on my toilet. The human smell is not bad for them as long as it's not severe lol! Also, watch out for residue and smell left by cleaning agents. Bathoom air freshners or any air freshners, be it spray, plug or candles is a NO-NO. Aerosol cans that hold shaving creams, hairsprays, etc. are also lethal to them.
Hope this helps! I am happy for the bird you found, he has a very responsible person to care for him.