Hello and welcome! I'm glad you are doing your research. Many of us work outside our homes which means quite a bit of cage time for our birds. I shoot for at least 4 hours of out-of-cage time a day. More is better, but it doesn't always happen. I'm relatively inexperienced, but I would point out that even getting a grey as a baby doesn't come with any guarantees. It is like having a human baby, you have environmental control, but temperament and a lot of other factors are beyond your control. What I mean is you never know if your bird will be a cuddle muffin or standoffish, vocal or quiet, etc. It sounds like you are somewhat prepared for that. Regardless of temperament and disposition, if you are willing to put the time and effort into it your bird will come to trust and care for you. My relationship with my TAG is more meaningful to me than I thought possible, and I've had a variety of "pets" over my lifetime. Good luck and God bless