I know this doesn't help you, but, you guys are getting off easy. My 76 CB400F is $1100.00, and that is with a 25% good driver discount. (as high as you can go)
That is for the most basic insurance (does include collision, not optional, but no theft/fire/vandalizm) , a $500 deductible, and a bike value of less than $1000.
Public Insurance here in Manitoba, so we have no choice but to pay up, or don't ride.
They also have it structured so that you pay the full amount over a 5 month period (May-Sept), so even if you just wanted to register for a month it would be $1100/5 instead of $1100/12.
Rick