Your complaints are valid. Since you ask about reconciliation, I'll offer you a possible route that addresses your complaints.

In theory all your issues should be negotiable, even with your entitled, pampered princess, and you have little to lose by trying it. Although you list your complaints in detail, you say nothing about the breakup, which leaves me to think that there was far more arguing than bargaining between you two. So, if you open negotiations for a reconciliation agreement, you run a high risk of turning it into an exchange of harsh words and ill feeling. Normally I'd advise you to have an advisor present, to help keep the dialog on track.

However, there is an element of Family Pushback here, and this is a powerful, destructive force that will likely undermine any progress you make if you don't address it. In your case, I'd advise you to propose a negotiation by proxy. A family member to represent each of you, presumably someone respected, older, wiser, and less inclined to hostility. Let them work out an agreement and present it to you both. IF either of you is unsatisfied, then a second round of bargaining would commence. The idea is not only to avoid arguments between you and your ex, but also to bring your ex's family into the game. The trick is that once they've invested time and effort into brokering the agreement, they'll push for it, and may even admonish your ex if she is too stubborn to accept it, or too entitled to live by it.