That is appalling.
Write and ask for an earlier MPS immediately
You are entitled to file a formal application if you would prefer and your suggestion is a good one.
You shoudl always send copies of Statements to your ex - but wait until you know he has received the application
It means what it sounds like - a Statement of what you propose which you are happy for the Court to say.
For the FDA you do a Statement of Issues and also a copy of any offers already made and rejected.
When it comes to the Statement of Open Proposals yes it shoudl be comprehensive - but still the more straightforward the better!
A simple covering letter is all that is required