I represented myself in BC. I found a great step-by-step guide done by the Law Society. Maybe Manitoba has something similar?
I'd try some sort of mediation first, though. If you can sit down with someone and figure out what you want the plan to be, you can submit it to the courts yourselves. And often the courts are so over-burdened that they want as many people as possible to go to mediation, so maybe there'll be resources available for that.