Don't worry about asking too many questions. It doesn't bother me at all... quite the contrary, it makes me feel good that you are so willing to learn and try hard to give him a good life.
The chirping you recorded on the first and third link are contact calls. They are almost the same as flock calls but flock calls are much louder and almost one after the other (there is a sense of urgency that is lacking from the contact calls). I always try to reproduce their contact calls by whistling back -not that I can actually mimic them faithfully, but they still seem to appreciate the effort. The second recording sounded more like content chirping to me than anything else.
You can add all of those things to the gloop but I would go with bigger grains first (oat groats, hulled barley, wheat and kamut kernels) because they are always attracted to them. And don't rush things by adding too many different things before he has been eating what he already gets for several days. Slowly and surely is the way to go with parrots. For dinner, two level tablespoons of seed mix are more than enough (take away whatever is left over when you cover his cage).
I would put full spectrum bulbs in all three sockets, just don't get them with a super high wattage. The fluorescent tubes are another option. The first link you posted with lights is for UV output and nothing else. The second one is not bad although I like the CRI to be higher as colors are very important to them. Full spectrum bulbs or tubes last only 6 months, after that, they start to deteriorate and the light is not as good.
You can do it. Making a parrot trust and love you doesn't really require any special skills (bless their little hearts, they are so very loving and forgiving!) except for the figuring out why they do what they do and how to deal with it, and you have us for that. The rest is just patience, persistence, consistency, love and, last but not least, respect for his needs and wishes. And don't feel bad about been a bit disappointed but don't feel like a failure because he bites you. If bites were an indication of failure, I might as well rehome all my parrots and hang my head in shame

The time will come when he will no longer bite but, even when he does it now, it's not you he is biting, it's mankind. Just to give you an idea of what to expect... I open Codee's cage (she and her husband sleep inside the cage, that's all they do in it as even their food and water are out where they spend all their day but they go into it on their own right at dusk to eat their dinner so I leave it there for them with the door open) when light is beginning to show in the sky and she promptly steps on my hand (she is waiting by the door where she goes as soon as she hears the dogs greeting me in the next room) and quickly climbs up my arm to my shoulder, she leans over and kisses me on my cheek (puts her beak on it and makes a kiss sound). I say hello to her and kiss her back, she kisses me again. I rub her head and tell her I love her and she kisses me again - as a matter of fact, she will kiss my cheek every single time I tell her I love her

She then rides my shoulder while I do all my chores (medicate, feed and water dogs, indoor cats -I do the ferals on my own, she doesn't go outside, clean litter boxes, change beds, start a load of laundry, clean cages in the living room, dining room and canary room). While I do the canaries, she likes to climb down my arm and go on their cages so she can steal their fruit (I always bring extra so she can have some) and, sometimes, bathe in their bath bowls (she bathes, at least, three times a week on her own). She spends about two hours on my shoulder (she actually walks and climbs all over my chest, arms, back, etc) and, when I am ready to go upstairs to the parrot room, I tell her to step down and she goes to join her husband to eat breakfast with him. She never bites or even nips me, she only screams her flock calls in the evening while waiting for her dinner and is a very relaxed and well-adjusted little bird (she was given up because she screamed and was nippy but her owners had her in a ferret's cage, in the family room, all by herself all day long and, sometimes, they even admitted to forgetting to turn on her light

). This is the behavior of a GCC that is not hormonal all the time, feels content with her life, trusts her human, feels loved and is well-taken care of. And this is what you can expect from Quigley once his mind and heart heals, as Wolf very aptly put it.