Hi. It sounds like you've done your due research on parrots (so many don't), but since you'll be jumping right into the "big boys", you may benefit from some hands on experience with large parrots before bringing one home. It would really help you get used to some of the things you only learn and understand by being around these wonderful animals. I would suggest you you look into local avian shelters you could volunteer at, and/or a local bird club with some experienced members who can show the ropes. It would also be beneficial to be confident in picking up a bird, as well as get familiar with just how loud and messy they can really be (which is very lol). Parrots are pretty adaptable, so long as their care needs are being met (nutrition, mental stimulation and interaction with their flock). It's us humans that aren't quite so open to the change they bring

Personally, I wouldn't keep Kiwi in my room. He kind of snorts/grunts in his sleep, ruffles his feathers and sometimes clacks his beak. I couldn't sleep with a noisy little beast in the room

I don't think Kiwi, however, would have any problem living in our room, or any other room, so long as he was still getting showered with love. We briefly lived in a very small studio apartment with him while waiting for our current (much larger) apartment to open up. It was stressful for us living in that small of a place, but he didn't seem to notice or care. As I said, their pretty adaptable. It was during that time that I realized just how many noises a bird can still make while dead asleep. My hubby slept right through it, but I'm a light sleeper and was waking up 5x a night because he snorted or ruffled up his feathers.
One thing I would highly recommend (given he/she will likely be staying in your room) is a cage on wheels with a play-top. That way, you can roll him wherever the action is, but you could control the situation when he was not in your room (like locking up the dogs, and removing messy foods from his cage so he doesn't mess up other places in the house). Plus, unless you live in a mansion, most average bedrooms are not large enough for a decent size cage and a play stand. You kind of get a 2 for one deal with the play top cages, and you can get a larger cage if your not worried about also having to fit a stand too. If you choose carefully, you can also find cages that sit high enough to have storage underneath (for a travel cage in case of emergency, as well as a basket with toys, food, cage cover ect...), so you take up even less room! I also highly suggest buying a large, cheap, rubber backed rug to keep the cage on. That way, when some fruit gets flung and stains, or someone decided to poop off their cage onto the floor, it's not ruining the carpet. Even better, cheaper rugs tend to be made of synthetic fibers, so when they get gross, you can hose em off outside and scrub them down without ruining them. Anyways, best of luck to you!