Gordie - I'm not a lawyer, but I will occasionally play one on the internet <smile>.
One thing that struck me about my separation agreement vs the usual commercial contracts that I've read is how in the separation agreement that the clauses are considered "severable" - that is, each of them can exist independently. In most commercial contracts if one clause is invalidated the whole thing is tossed out.
It may be a higher legal spend, but perhaps check with your lawyer to see if you can get an agreement in place now for the things you "DO" agree on and then deal with the other pieces later? Perhaps those remaining pieces will be of the sort that allow you to move out and begin rebuilding while that is sorted out.
Again - not a lawyer here and this might not be a path for you.
On BD H52, W50 T27, M26 S21, D23 BD-9-Mar-16 D-15-Jan-18 Final-19-Apr-18 I am a storyteller. The story may do you no good. But a story is never for the listener. It is always for the one who tells