Sadly, I suspect the chances are receding with passage of time. The delaying tactics of CASA are not helping.
Time to bite the bullet, get the professionals involved and get some good results. The other side will have to pay the legal expenses if you win.
Admirably, some PPRuners have offered to GoFundMe for Glen's legal costs, and I am sure more will step up to the mark once they see he is proceeding, regardless of the outcome. It is not a matter of glee to see CASA put under a blowtorch, but a sense of indignity as the unfairness of it all.