We all have to remember this ticket was issued a considerable distance from the GTA.
Meaning if the OP decided to go to early resolution and figures he is screwed it is a wasted trip, Likely at least one night in a hotel.
Then he has to travel back for a trial, (if that is the route he decides to go). Again likely a hotel room, to "hope" the cop doesn't show.
In smaller jurisdictions like this the detachment commanders are pretty hard on guys missing their court dates and the crown has officer's schedule at hand, when setting court dates, etc.
OP some of the others have given you good advice on the insurance front doesn't matter if your tagged for 30 or 1 km over in the eyes of insurance. So unless you get the ticket completely tossed, the "cost" will be the same. So you have to weigh the cost of at least one trip, perhaps two, without a positive outcome.
As I said earlier unless a firm like Ex coppers can GUARANTEE you that they will get a complete win and not just a reduction, there is NO benefit to using a service like that. There really is NO way they can guarantee to get you off unless there is a fatal flaw with the ticket, (just too many variables, ****** off crown, ****** off jp, ****** off cop, etc, to give that type of guarantee).
So in the end you have to do a cost/benefit analysis and decide for yourself if it is worth fighting.