Hi! I am new to pottery as well (hobby potter), and recently setup a work area (I don't dare call it a studio ... still too new for that title!). I just purchased a kiln (Skutt 822KM-3), and purchased a Brent wheel about 6 months ago. I have been taking classes for a year with a wonderful teacher who has a paint-your-own pottery store, and also does clay classes. I have to say that I don't think I could have done all the setup and purchasing without her guidance. Her experiences with brands, clays, glazes, firings was a world of help. So if you can find a good resource locally, it will be invaluable.
The questions you are asking are quite personal to what you are planning to do. Clays, glazes, production volume ... all based on what you want to do.
For your studio, you can google information for how much space you need.
Clays are your preference. I still use, what I guess is beginner clay. For what I am doing it serves the purpose. Bisque fire 04.
Glazes are also your preference. I am currently using the Mayco line. Fire 06. I use Stroke & Coat, the Crystallines, and Elements. I'm not very artistic, so I do more solid colors and less detailed design work for right now. I hope to experiment more in the future.
Kiln size depends on how much you plan to produce. I have a small kiln, which I expect to fire a bisque & glaze batch once a month. Sounds like you are looking to do more than that.
In doing my research, you can't go wrong with a Skutt kiln and Brent wheel.
I've purchased by wheel and kiln from Clay-King.com. Prices are good and the service has been excellent.
Just some thoughts from another new potter.
Good luck, and have fun!