Here is my suggestion. That is quite a list of fish for your tank. In your place, I would do as suggested and add a few at the time. After you get all of them in there or maybe even part of them, you may decide not to add more.
You are the only person who can decide how much is enough and how much is too much. As stated before by myself and others, the inch per gallon is only a guideline and isn't the stated rule in fishkeeping. Looks to me like with the selections you have now, you are going to have a busy tank. Don't just think of how much can I put in the tank but what fish am I going to enjoy having in the tank. Also, with more fish comes more maintenance...are you going to enjoy water changes every 3 or 4 days if you overload the tank? By going with fewer fish, you can limit water changes to once a week...that way you can sit back and enjoy watching the fish rather than work, work, work. Speaking from experience, the work part tends to wear on you after a while. I have had up to 8 tanks running at a time..........some of them fry tanks which required daily attention. You do get burned out in a hurry, especially if you also have a job or school to attend.