Your chances of having a strata agent appointed are good.
its up,to the tribunal to look at the evidence and make a call.
Document all the non compliances referencing the part of the act that has been broken.
Despite three other owners opposing you, they would have little sway if your documentation is good.
Line up a strata agent who is willing to take on the job. You have some free rein here to choose an SM who will work with you rather than the other three owners.
But you are not going to make any new friends by this course of action, and the medicine may be worse than the affliction